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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Samantha De Knijff

Bib: 6787 •F •Age: N/A

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0:00
0:00
/ mi
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Overall
#0 / 29021
Top 18%
Gender (Female)
#0 / 12578
Top 4%
Age Group (F18-39)
#0 / 5716
Top 8%
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
19:58
3.11 mi
Rank: #3681
Start → 5K
19:58 | 6:26/mi
10K
39:56
6.21 mi
Rank: #3664 (+17)
5K → 10K
19:58 | 6:26/mi
15K
1:00:15
9.32 mi
Rank: #3912 (-248)
10K → 15K
20:19 | 6:33/mi
20K
1:21:16
12.43 mi
Rank: #4341 (-429)
15K → 20K
21:01 | 6:46/mi
HALF
1:25:45
13.11 mi
Rank: #4377 (-36)
20K → HALF
4:29 | 6:35/mi
25K
1:42:23
15.53 mi
Rank: #4597 (-220)
HALF → 25K
16:38 | 6:52/mi
30K
2:04:18
18.64 mi
Rank: #4832 (-235)
25K → 30K
21:55 | 7:04/mi
20M
2:13:55
20.00 mi
Rank: #4900 (-68)
30K → 20M
9:37 | 7:05/mi
21M
2:21:44
21.00 mi
Rank: #5104 (-204)
20M → 21M
7:49 | 7:49/mi
35K
2:26:48
21.75 mi
Rank: #5100 (+4)
21M → 35K
5:04 | 6:47/mi
23M
2:35:46
23.00 mi
Rank: #5164 (-64)
35K → 23M
8:58 | 7:10/mi
24M
2:42:43
24.00 mi
Rank: #5200 (-36)
23M → 24M
6:57 | 6:57/mi
40K
2:48:52
24.85 mi
Rank: #5245 (-45)
24M → 40K
6:09 | 7:12/mi
25.2M
2:51:33
25.20 mi
Rank: #5287 (-42)
40K → 25.2M
2:41 | 7:47/mi
FINISH
2:58:39
26.22 mi
Rank: #5349 (-62)
25.2M → FINISH
7:06 | 6:59/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:25:45
Pace6:33 /mi
2nd Half
Distance13.11 mi
Time1:32:54
Pace7:06 /mi
📊Positive Split: 8.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:4119:586:2619:58
6:26
-
10K
6.21 mi10:44:3939:566:2619:58
6:26
0:00
15K
9.32 mi11:04:581:00:156:2820:19
6:33
+0:07
20K
12.43 mi11:25:591:21:166:3321:01
6:46
+0:13
HALF
13.11 mi11:30:281:25:456:334:29
6:35
-0:11
25K
15.53 mi11:47:061:42:236:3616:38
6:52
+0:17
30K
18.64 mi12:09:012:04:186:4121:55
7:04
+0:12
20M
20.00 mi12:18:382:13:556:429:37
7:05
+0:01
21M
21.00 mi12:26:272:21:446:457:49
7:49
+0:44
35K
21.75 mi12:31:312:26:486:465:04
6:47
-1:02
23M
23.00 mi12:40:292:35:466:478:58
7:10
+0:23
24M
24.00 mi12:47:262:42:436:476:57
6:57
-0:13
40K
24.85 mi12:53:352:48:526:486:09
7:12
+0:15
25.2M
25.20 mi12:56:162:51:336:492:41
7:47
+0:35
FINISH
26.22 mi13:03:222:58:396:507:06
6:59
-0:48

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

6:26 /mi

Average Pace

6:49 /mi

Slowest Pace

7:49 /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

1:04:44

36% of race

Time at Steady Pace

1:28:18

49% of race

Time at Slower Pace

25:37

14% of race

Average Pace: 6:49 /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 mi10:24:4119:586:2619:58
6:26
#3681
10K
6.21 mi10:44:3939:566:2619:58
6:26
#3664
15K
9.32 mi11:04:581:00:156:2820:19
6:33
#3912
20K
12.43 mi11:25:591:21:166:3321:01
6:46
#4341
HALF
13.11 mi11:30:281:25:456:334:29
6:35
#4377
25K
15.53 mi11:47:061:42:236:3616:38
6:52
#4597
30K
18.64 mi12:09:012:04:186:4121:55
7:04
#4832
20M
20.00 mi12:18:382:13:556:429:37
7:05
#4900
21M
21.00 mi12:26:272:21:446:457:49
7:49
#5104
35K
21.75 mi12:31:312:26:486:465:04
6:47
#5100
23M
23.00 mi12:40:292:35:466:478:58
7:10
#5164
24M
24.00 mi12:47:262:42:436:476:57
6:57
#5200
40K
24.85 mi12:53:352:48:526:486:09
7:12
#5245
25.2M
25.20 mi12:56:162:51:336:492:41
7:47
#5287
FINISH
26.22 mi13:03:222:58:396:507:06
6:59
#5349
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 mi36811741744530(Top 16%)270(Top 2%)270(Top 5%)
10K6.21 mi3.10 mi3664+171741743714(Top 13%)177(Top 1%)177(Top 3%)
15K9.32 mi3.11 mi3912-248186-12186-124530(Top 16%)270(Top 2%)270(Top 5%)
20K12.43 mi3.11 mi4341-429235-49235-495853(Top 20%)543(Top 4%)543(Top 9%)
HALF13.11 mi0.68 mi4377-36243-8243-85155(Top 18%)396(Top 3%)396(Top 7%)
25K15.53 mi2.42 mi4597-220276-33276-336324(Top 22%)700(Top 6%)700(Top 12%)
30K18.64 mi3.11 mi4832-235325-49325-496347(Top 22%)783(Top 6%)783(Top 14%)
20M20.00 mi1.36 mi4900-68343-18343-186116(Top 21%)768(Top 6%)768(Top 13%)
21M21.00 mi1.00 mi5104-204387-44387-448651(Top 30%)1871(Top 15%)1871(Top 33%)
35K21.75 mi0.75 mi5100+4392-5392-55518(Top 19%)678(Top 5%)678(Top 12%)
23M23.00 mi1.25 mi5164-64422-30422-306554(Top 23%)1064(Top 8%)1064(Top 19%)
24M24.00 mi1.00 mi5200-36443-21443-216146(Top 21%)991(Top 8%)991(Top 17%)
40K24.85 mi0.85 mi5245-45464-21464-216726(Top 23%)1246(Top 10%)1246(Top 22%)
25.2M25.20 mi0.35 mi5287-42481-17481-176989(Top 24%)1388(Top 11%)1388(Top 24%)
FINISH26.22 mi1.02 mi5349-62511-30511-307315(Top 25%)1597(Top 13%)1597(Top 28%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21
+97ft-345ft

Overall

4530

Females

270

F18-39

270

5K→10K

3.1 - 6.2 mi

Top 13%
×5
+79ft-138ft

Overall

3714

Females

177

F18-39

177

10K→15K

6.2 - 9.3 mi

Top 16%
×3
+67ft-78ft

Overall

4530

Females

270

F18-39

270

15K→20K

9.3 - 12.4 mi

Top 20%
×5
+106ft-86ft

Overall

5853

Females

543

F18-39

543

20K→HALF

12.4 - 13.1 mi

Top 18%
×2
+19ft-37ft

Overall

5155

Females

396

F18-39

396

HALF→25K

13.1 - 15.5 mi

Top 22%
×4
+66ft-88ft

Overall

6324

Females

700

F18-39

700

25K→30K

15.5 - 18.6 mi

Top 22%
×9
+181ft-148ft

Overall

6347

Females

783

F18-39

783

30K→20M

18.6 - 20.0 mi

Top 21%
×5
+64ft-50ft

Overall

6116

Females

768

F18-39

768

20M→21M

20.0 - 21.0 mi

Top 30%
×8
+106ft-24ft

Overall

8651

Females

1871

F18-39

1871

21M→35K

21.0 - 21.8 mi

Top 19%
×7
+17ft-86ft

Overall

5518

Females

678

F18-39

678

35K→23M

21.8 - 23.0 mi

Top 23%
×5
+23ft-63ft

Overall

6554

Females

1064

F18-39

1064

23M→24M

23.0 - 24.0 mi

Top 21%
×6
+12ft-82ft

Overall

6146

Females

991

F18-39

991

24M→40K

24.0 - 24.9 mi

Top 23%
×1
+6ft-20ft

Overall

6726

Females

1246

F18-39

1246

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1
+13ft-16ft

Overall

6989

Females

1388

F18-39

1388

25.2M→FINISH

25.2 - 26.2 mi

Top 25%
×2
+22ft-21ft

Overall

7315

Females

1597

F18-39

1597

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
605
Passed By
1777
Net Change
-1668
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3681
5K → 10K157140+17#3681#3664
10K → 15K25200-248#3664#3912
15K → 20K17200-429#3912#4341
20K → HALF844-36#4341#4377
HALF → 25K33200-220#4377#4597
25K → 30K61200-235#4597#4832
30K → 20M35103-68#4832#4900
20M → 21M24200-204#4900#5104
21M → 35K4440+4#5104#5100
35K → 23M56120-64#5100#5164
23M → 24M4884-36#5164#5200
24M → 40K4085-45#5200#5245
40K → 25.2M1355-42#5245#5287
25.2M → FINISH44106-62#5287#5349
TOTALS6051777-1668
📊

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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Activity Data

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