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BOSTON MARATHON 2026

Emily Decocker

Bib: 12887•F

NY

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0:00
/ mi
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 39%
Age Group (F18-39)
#0 / 5716
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
23:49
3.11 mi
Rank: #14262
Start → 5K
23:49 | 7:40/mi
10K
47:49
6.21 mi
Rank: #14602 (-340)
5K → 10K
24:00 | 7:44/mi
15K
1:11:45
9.32 mi
Rank: #14538 (+64)
10K → 15K
23:56 | 7:43/mi
20K
1:36:15
12.43 mi
Rank: #14690 (-152)
15K → 20K
24:30 | 7:54/mi
HALF
1:41:35
13.11 mi
Rank: #14744 (-54)
20K → HALF
5:20 | 7:50/mi
25K
2:01:23
15.53 mi
Rank: #15051 (-307)
HALF → 25K
19:48 | 8:10/mi
30K
2:27:21
18.64 mi
Rank: #15234 (-183)
25K → 30K
25:58 | 8:22/mi
20M
2:38:44
20.00 mi
Rank: #15234
30K → 20M
11:23 | 8:23/mi
21M
2:47:46
21.00 mi
Rank: #15273 (-39)
20M → 21M
9:02 | 9:02/mi
35K
2:54:09
21.75 mi
Rank: #15365 (-92)
21M → 35K
6:23 | 8:32/mi
23M
3:04:51
23.00 mi
Rank: #15412 (-47)
35K → 23M
10:42 | 8:34/mi
24M
3:12:39
24.00 mi
Rank: #15273 (+139)
23M → 24M
7:48 | 7:48/mi
40K
3:19:39
24.85 mi
Rank: #15185 (+88)
24M → 40K
7:00 | 8:12/mi
25.2M
3:22:36
25.20 mi
Rank: #15113 (+72)
40K → 25.2M
2:57 | 8:34/mi
FINISH
3:30:16
26.22 mi
Rank: #14998 (+115)
25.2M → FINISH
7:40 | 7:32/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:41:35
Pace7:45 /mi
2nd Half
Distance13.11 mi
Time1:48:41
Pace8:18 /mi
📊Positive Split: 7.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:1223:497:4023:49
7:40
-
10K
6.21 mi11:16:1247:497:4224:00
7:44
+0:04
15K
9.32 mi11:40:081:11:457:4223:56
7:43
-0:01
20K
12.43 mi12:04:381:36:157:4524:30
7:54
+0:11
HALF
13.11 mi12:09:581:41:357:455:20
7:50
-0:04
25K
15.53 mi12:29:462:01:237:4919:48
8:10
+0:20
30K
18.64 mi12:55:442:27:217:5525:58
8:22
+0:12
20M
20.00 mi13:07:072:38:447:5711:23
8:23
+0:01
21M
21.00 mi13:16:092:47:468:009:02
9:02
+0:39
35K
21.75 mi13:22:322:54:098:016:23
8:32
-0:30
23M
23.00 mi13:33:143:04:518:0310:42
8:34
+0:02
24M
24.00 mi13:41:023:12:398:027:48
7:48
-0:46
40K
24.85 mi13:48:023:19:398:027:00
8:12
+0:24
25.2M
25.20 mi13:50:593:22:368:032:57
8:34
+0:22
FINISH
26.22 mi13:58:393:30:168:027:40
7:32
-1:02

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

7:32 /mi

Average Pace

8:02 /mi

Slowest Pace

9:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:23:51

68% of race

Time at Steady Pace

57:23

27% of race

Time at Slower Pace

9:02

4% of race

Average Pace: 8:01 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:52:1223:497:4023:49
7:40
#14262
10K
6.21 mi11:16:1247:497:4224:00
7:44
#14602
15K
9.32 mi11:40:081:11:457:4223:56
7:43
#14538
20K
12.43 mi12:04:381:36:157:4524:30
7:54
#14690
HALF
13.11 mi12:09:581:41:357:455:20
7:50
#14744
25K
15.53 mi12:29:462:01:237:4919:48
8:10
#15051
30K
18.64 mi12:55:442:27:217:5525:58
8:22
#15234
20M
20.00 mi13:07:072:38:447:5711:23
8:23
#15234
21M
21.00 mi13:16:092:47:468:009:02
9:02
#15273
35K
21.75 mi13:22:322:54:098:016:23
8:32
#15365
23M
23.00 mi13:33:143:04:518:0310:42
8:34
#15412
24M
24.00 mi13:41:023:12:398:027:48
7:48
#15273
40K
24.85 mi13:48:023:19:398:027:00
8:12
#15185
25.2M
25.20 mi13:50:593:22:368:032:57
8:34
#15113
FINISH
26.22 mi13:58:393:30:168:027:40
7:32
#14998
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi142624237423714593(Top 50%)4502(Top 36%)4502(Top 79%)
10K6.21 mi3.10 mi14602-3404448-2114448-21114993(Top 52%)4697(Top 37%)4697(Top 82%)
15K9.32 mi3.11 mi14538+644445+34445+314593(Top 50%)4502(Top 36%)4502(Top 79%)
20K12.43 mi3.11 mi14690-1524546-1014546-10115210(Top 52%)4924(Top 39%)4924(Top 86%)
HALF13.11 mi0.68 mi14744-544589-434589-4315788(Top 54%)5205(Top 41%)5205(Top 91%)
25K15.53 mi2.42 mi15051-3074783-1944783-19416578(Top 57%)5750(Top 46%)5750(Top 101%)
30K18.64 mi3.11 mi15234-1834944-1614944-16116000(Top 55%)5512(Top 44%)5512(Top 96%)
20M20.00 mi1.36 mi152344961-174961-1715441(Top 53%)5319(Top 42%)5319(Top 93%)
21M21.00 mi1.00 mi15273-395020-595020-5916299(Top 56%)5857(Top 47%)5857(Top 102%)
35K21.75 mi0.75 mi15365-925082-625082-6217763(Top 61%)6754(Top 54%)6754(Top 118%)
23M23.00 mi1.25 mi15412-475135-535135-5316012(Top 55%)5848(Top 46%)5848(Top 102%)
24M24.00 mi1.00 mi15273+1395073+625073+6212363(Top 43%)3920(Top 31%)3920(Top 69%)
40K24.85 mi0.85 mi15185+885039+345039+3413722(Top 47%)4735(Top 38%)4735(Top 83%)
25.2M25.20 mi0.35 mi15113+725008+315008+3112097(Top 42%)3927(Top 31%)3927(Top 69%)
FINISH26.22 mi1.02 mi14998+1154950+584950+5811670(Top 40%)3704(Top 29%)3704(Top 65%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21
+97ft-345ft

Overall

14593

Females

4502

F18-39

4502

5K→10K

3.1 - 6.2 mi

Top 52%
×5
+79ft-138ft

Overall

14993

Females

4697

F18-39

4697

10K→15K

6.2 - 9.3 mi

Top 50%
×3
+67ft-78ft

Overall

14593

Females

4502

F18-39

4502

15K→20K

9.3 - 12.4 mi

Top 52%
×5
+106ft-86ft

Overall

15210

Females

4924

F18-39

4924

20K→HALF

12.4 - 13.1 mi

Top 54%
×2
+19ft-37ft

Overall

15788

Females

5205

F18-39

5205

HALF→25K

13.1 - 15.5 mi

Top 57%
×4
+66ft-88ft

Overall

16578

Females

5750

F18-39

5750

25K→30K

15.5 - 18.6 mi

Top 55%
×9
+181ft-148ft

Overall

16000

Females

5512

F18-39

5512

30K→20M

18.6 - 20.0 mi

Top 53%
×5
+64ft-50ft

Overall

15441

Females

5319

F18-39

5319

20M→21M

20.0 - 21.0 mi

Top 56%
×8
+106ft-24ft

Overall

16299

Females

5857

F18-39

5857

21M→35K

21.0 - 21.8 mi

Top 61%
×7
+17ft-86ft

Overall

17763

Females

6754

F18-39

6754

35K→23M

21.8 - 23.0 mi

Top 55%
×5
+23ft-63ft

Overall

16012

Females

5848

F18-39

5848

23M→24M

23.0 - 24.0 mi

Top 43%
×6
+12ft-82ft

Overall

12363

Females

3920

F18-39

3920

24M→40K

24.0 - 24.9 mi

Top 47%
×1
+6ft-20ft

Overall

13722

Females

4735

F18-39

4735

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1
+13ft-16ft

Overall

12097

Females

3927

F18-39

3927

25.2M→FINISH

25.2 - 26.2 mi

Top 40%
×2
+22ft-21ft

Overall

11670

Females

3704

F18-39

3704

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1561
Passed By
2297
Net Change
-736
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14262
5K → 10K171511-340#14262#14602
10K → 15K236172+64#14602#14538
15K → 20K124276-152#14538#14690
20K → HALF1569-54#14690#14744
HALF → 25K70377-307#14744#15051
25K → 30K139322-183#15051#15234
30K → 20M1111110#15234#15234
20M → 21M93132-39#15234#15273
21M → 35K45137-92#15273#15365
35K → 23M75122-47#15365#15412
23M → 24M15617+139#15412#15273
24M → 40K11830+88#15273#15185
40K → 25.2M786+72#15185#15113
25.2M → FINISH13015+115#15113#14998
TOTALS15612297-736
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Export & Support

Download your data, get help, and share your feedback

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing