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BOSTON MARATHON 2026

Emily Stalkfleet

Bib: 29577 •F •Age: N/A

NY

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Overall
#0 / 29021
Gender (Female)
#0 / 12578
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
28:38
3.11 mi
Rank: #23512
Start → 5K
28:38 | 9:13/mi
10K
56:17
6.21 mi
Rank: #22989 (+523)
5K → 10K
27:39 | 8:54/mi
15K
1:24:11
9.32 mi
Rank: #22859 (+130)
10K → 15K
27:54 | 8:59/mi
20K
1:52:44
12.43 mi
Rank: #22811 (+48)
15K → 20K
28:33 | 9:12/mi
HALF
1:58:43
13.11 mi
Rank: #22758 (+53)
20K → HALF
5:59 | 8:47/mi
25K
2:20:56
15.53 mi
Rank: #22601 (+157)
HALF → 25K
22:13 | 9:10/mi
30K
2:50:17
18.64 mi
Rank: #22355 (+246)
25K → 30K
29:21 | 9:27/mi
20M
3:03:19
20.00 mi
Rank: #22270 (+85)
30K → 20M
13:02 | 9:36/mi
21M
3:13:40
21.00 mi
Rank: #22227 (+43)
20M → 21M
10:21 | 10:21/mi
35K
3:20:28
21.75 mi
Rank: #22156 (+71)
21M → 35K
6:48 | 9:06/mi
23M
3:32:07
23.00 mi
Rank: #22018 (+138)
35K → 23M
11:39 | 9:19/mi
24M
3:41:08
24.00 mi
Rank: #21923 (+95)
23M → 24M
9:01 | 9:01/mi
40K
3:48:53
24.85 mi
Rank: #21839 (+84)
24M → 40K
7:45 | 9:04/mi
25.2M
3:52:28
25.20 mi
Rank: #21829 (+10)
40K → 25.2M
3:35 | 10:24/mi
FINISH
4:01:00
26.22 mi
Rank: #21714 (+115)
25.2M → FINISH
8:32 | 8:23/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:58:43
Pace9:04 /mi
2nd Half
Distance13.11 mi
Time2:02:17
Pace9:20 /mi
📊Positive Split: 3.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:3628:389:1328:38
9:13
-
10K
6.21 mi12:20:1556:179:0427:39
8:54
-0:19
15K
9.32 mi12:48:091:24:119:0227:54
8:59
+0:05
20K
12.43 mi13:16:421:52:449:0528:33
9:12
+0:13
HALF
13.11 mi13:22:411:58:439:045:59
8:47
-0:25
25K
15.53 mi13:44:542:20:569:0522:13
9:10
+0:23
30K
18.64 mi14:14:152:50:179:0929:21
9:27
+0:17
20M
20.00 mi14:27:173:03:199:1013:02
9:36
+0:09
21M
21.00 mi14:37:383:13:409:1410:21
10:21
+0:45
35K
21.75 mi14:44:263:20:289:146:48
9:06
-1:15
23M
23.00 mi14:56:053:32:079:1411:39
9:19
+0:13
24M
24.00 mi15:05:063:41:089:139:01
9:01
-0:18
40K
24.85 mi15:12:513:48:539:137:45
9:04
+0:03
25.2M
25.20 mi15:16:263:52:289:143:35
10:24
+1:20
FINISH
26.22 mi15:24:584:01:009:128:32
8:23
-2:01

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

8:23 /mi

Average Pace

9:12 /mi

Slowest Pace

10:24 /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

42:10

17% of race

Time at Steady Pace

2:22:31

59% of race

Time at Slower Pace

56:19

23% of race

Average Pace: 9:11 /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 mi11:52:3628:389:1328:38
9:13
#23512
10K
6.21 mi12:20:1556:179:0427:39
8:54
#22989
15K
9.32 mi12:48:091:24:119:0227:54
8:59
#22859
20K
12.43 mi13:16:421:52:449:0528:33
9:12
#22811
HALF
13.11 mi13:22:411:58:439:045:59
8:47
#22758
25K
15.53 mi13:44:542:20:569:0522:13
9:10
#22601
30K
18.64 mi14:14:152:50:179:0929:21
9:27
#22355
20M
20.00 mi14:27:173:03:199:1013:02
9:36
#22270
21M
21.00 mi14:37:383:13:409:1410:21
10:21
#22227
35K
21.75 mi14:44:263:20:289:146:48
9:06
#22156
23M
23.00 mi14:56:053:32:079:1411:39
9:19
#22018
24M
24.00 mi15:05:063:41:089:139:01
9:01
#21923
40K
24.85 mi15:12:513:48:539:137:45
9:04
#21839
25.2M
25.20 mi15:16:263:52:289:143:35
10:24
#21829
FINISH
26.22 mi15:24:584:01:009:128:32
8:23
#21714
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 mi235129430943022611(Top 78%)8931(Top 71%)8931(Top 156%)
10K6.21 mi3.10 mi22989+5239161+2699161+26922398(Top 77%)8858(Top 70%)8858(Top 155%)
15K9.32 mi3.11 mi22859+1309074+879074+8722611(Top 78%)8931(Top 71%)8931(Top 156%)
20K12.43 mi3.11 mi22811+489055+199055+1922710(Top 78%)9022(Top 72%)9022(Top 158%)
HALF13.11 mi0.68 mi22758+539025+309025+3021750(Top 75%)8513(Top 68%)8513(Top 149%)
25K15.53 mi2.42 mi22601+1578957+688957+6821872(Top 75%)8613(Top 68%)8613(Top 151%)
30K18.64 mi3.11 mi22355+2468865+928865+9221453(Top 74%)8499(Top 68%)8499(Top 149%)
20M20.00 mi1.36 mi22270+858837+288837+2821421(Top 74%)8563(Top 68%)8563(Top 150%)
21M21.00 mi1.00 mi22227+438827+108827+1021562(Top 74%)8667(Top 69%)8667(Top 152%)
35K21.75 mi0.75 mi22156+718802+258802+2520405(Top 70%)8147(Top 65%)8147(Top 143%)
23M23.00 mi1.25 mi22018+1388762+408762+4019886(Top 69%)7933(Top 63%)7933(Top 139%)
24M24.00 mi1.00 mi21923+958717+458717+4519569(Top 67%)7836(Top 62%)7836(Top 137%)
40K24.85 mi0.85 mi21839+848684+338684+3318741(Top 65%)7455(Top 59%)7455(Top 130%)
25.2M25.20 mi0.35 mi21829+108679+58679+520778(Top 72%)8456(Top 67%)8456(Top 148%)
FINISH26.22 mi1.02 mi21714+1158620+598620+5917516(Top 60%)6802(Top 54%)6802(Top 119%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21
+97ft-345ft

Overall

22611

Females

8931

F18-39

8931

5K→10K

3.1 - 6.2 mi

Top 77%
×5
+79ft-138ft

Overall

22398

Females

8858

F18-39

8858

10K→15K

6.2 - 9.3 mi

Top 78%
×3
+67ft-78ft

Overall

22611

Females

8931

F18-39

8931

15K→20K

9.3 - 12.4 mi

Top 78%
×5
+106ft-86ft

Overall

22710

Females

9022

F18-39

9022

20K→HALF

12.4 - 13.1 mi

Top 75%
×2
+19ft-37ft

Overall

21750

Females

8513

F18-39

8513

HALF→25K

13.1 - 15.5 mi

Top 75%
×4
+66ft-88ft

Overall

21872

Females

8613

F18-39

8613

25K→30K

15.5 - 18.6 mi

Top 74%
×9
+181ft-148ft

Overall

21453

Females

8499

F18-39

8499

30K→20M

18.6 - 20.0 mi

Top 74%
×5
+64ft-50ft

Overall

21421

Females

8563

F18-39

8563

20M→21M

20.0 - 21.0 mi

Top 74%
×8
+106ft-24ft

Overall

21562

Females

8667

F18-39

8667

21M→35K

21.0 - 21.8 mi

Top 70%
×7
+17ft-86ft

Overall

20405

Females

8147

F18-39

8147

35K→23M

21.8 - 23.0 mi

Top 69%
×5
+23ft-63ft

Overall

19886

Females

7933

F18-39

7933

23M→24M

23.0 - 24.0 mi

Top 67%
×6
+12ft-82ft

Overall

19569

Females

7836

F18-39

7836

24M→40K

24.0 - 24.9 mi

Top 65%
×1
+6ft-20ft

Overall

18741

Females

7455

F18-39

7455

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1
+13ft-16ft

Overall

20778

Females

8456

F18-39

8456

25.2M→FINISH

25.2 - 26.2 mi

Top 60%
×2
+22ft-21ft

Overall

17516

Females

6802

F18-39

6802

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2406*
Passed By
608
Net Change
+1798
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23512
5K → 10K591*68+523#23512#22989
10K → 15K241*111+130#22989#22859
15K → 20K179131+48#22859#22811
20K → HALF6411+53#22811#22758
HALF → 25K208*51+157#22758#22601
25K → 30K306*60+246#22601#22355
30K → 20M12439+85#22355#22270
20M → 21M9148+43#22270#22227
21M → 35K9524+71#22227#22156
35K → 23M16022+138#22156#22018
23M → 24M10611+95#22018#21923
24M → 40K917+84#21923#21839
40K → 25.2M2717+10#21839#21829
25.2M → FINISH1238+115#21829#21714
TOTALS2406*608+1798

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing