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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Janae Sernoffsky

Bib: 10773 •F •Age: N/A

MA

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Top 27%
Gender (Female)
#0 / 12578
Top 10%
Age Group (F18-39)
#0 / 5716
Top 19%
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
20:38
3.11 mi
Rank: #5359
Start → 5K
20:38 | 6:39/mi
10K
42:02
6.21 mi
Rank: #6553 (-1194)
5K → 10K
21:24 | 6:54/mi
15K
1:03:43
9.32 mi
Rank: #7232 (-679)
10K → 15K
21:41 | 6:59/mi
20K
1:25:38
12.43 mi
Rank: #7529 (-297)
15K → 20K
21:55 | 7:04/mi
HALF
1:30:22
13.11 mi
Rank: #7555 (-26)
20K → HALF
4:44 | 6:57/mi
25K
1:47:39
15.53 mi
Rank: #7634 (-79)
HALF → 25K
17:17 | 7:08/mi
30K
2:10:11
18.64 mi
Rank: #7599 (+35)
25K → 30K
22:32 | 7:16/mi
20M
2:20:04
20.00 mi
Rank: #7536 (+63)
30K → 20M
9:53 | 7:17/mi
21M
2:27:52
21.00 mi
Rank: #7545 (-9)
20M → 21M
7:48 | 7:48/mi
35K
2:33:12
21.75 mi
Rank: #7525 (+20)
21M → 35K
5:20 | 7:08/mi
23M
2:42:37
23.00 mi
Rank: #7531 (-6)
35K → 23M
9:25 | 7:32/mi
24M
2:50:17
24.00 mi
Rank: #7633 (-102)
23M → 24M
7:40 | 7:40/mi
40K
2:56:58
24.85 mi
Rank: #7728 (-95)
24M → 40K
6:41 | 7:50/mi
25.2M
2:59:53
25.20 mi
Rank: #7760 (-32)
40K → 25.2M
2:55 | 8:28/mi
FINISH
3:07:35
26.22 mi
Rank: #7871 (-111)
25.2M → FINISH
7:42 | 7:34/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
Time1:30:22
Pace6:54 /mi
2nd Half
Distance13.11 mi
Time1:37:13
Pace7:25 /mi
📊Positive Split: 7.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:37:5120:386:3920:38
6:39
-
10K
6.21 mi10:59:1542:026:4621:24
6:54
+0:15
15K
9.32 mi11:20:561:03:436:5121:41
6:59
+0:05
20K
12.43 mi11:42:511:25:386:5421:55
7:04
+0:05
HALF
13.11 mi11:47:351:30:226:544:44
6:57
-0:07
25K
15.53 mi12:04:521:47:396:5617:17
7:08
+0:11
30K
18.64 mi12:27:242:10:117:0022:32
7:16
+0:08
20M
20.00 mi12:37:172:20:047:019:53
7:17
+0:01
21M
21.00 mi12:45:052:27:527:037:48
7:48
+0:31
35K
21.75 mi12:50:252:33:127:035:20
7:08
-0:40
23M
23.00 mi12:59:502:42:377:059:25
7:32
+0:24
24M
24.00 mi13:07:302:50:177:067:40
7:40
+0:08
40K
24.85 mi13:14:112:56:587:086:41
7:50
+0:10
25.2M
25.20 mi13:17:062:59:537:092:55
8:28
+0:38
FINISH
26.22 mi13:24:483:07:357:107:42
7:34
-0:54

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

6:39 /mi

Average Pace

7:10 /mi

Slowest Pace

8:28 /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

1:08:27

36% of race

Time at Steady Pace

1:16:57

41% of race

Time at Slower Pace

42:11

22% of race

Average Pace: 7:09 /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 mi10:37:5120:386:3920:38
6:39
#5359
10K
6.21 mi10:59:1542:026:4621:24
6:54
#6553
15K
9.32 mi11:20:561:03:436:5121:41
6:59
#7232
20K
12.43 mi11:42:511:25:386:5421:55
7:04
#7529
HALF
13.11 mi11:47:351:30:226:544:44
6:57
#7555
25K
15.53 mi12:04:521:47:396:5617:17
7:08
#7634
30K
18.64 mi12:27:242:10:117:0022:32
7:16
#7599
20M
20.00 mi12:37:172:20:047:019:53
7:17
#7536
21M
21.00 mi12:45:052:27:527:037:48
7:48
#7545
35K
21.75 mi12:50:252:33:127:035:20
7:08
#7525
23M
23.00 mi12:59:502:42:377:059:25
7:32
#7531
24M
24.00 mi13:07:302:50:177:067:40
7:40
#7633
40K
24.85 mi13:14:112:56:587:086:41
7:50
#7728
25.2M
25.20 mi13:17:062:59:537:092:55
8:28
#7760
FINISH
26.22 mi13:24:483:07:357:107:42
7:34
#7871
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 mi53593863868453(Top 29%)1286(Top 10%)1286(Top 22%)
10K6.21 mi3.10 mi6553-1194649-263649-2637838(Top 27%)1032(Top 8%)1032(Top 18%)
15K9.32 mi3.11 mi7232-679854-205854-2058453(Top 29%)1286(Top 10%)1286(Top 22%)
20K12.43 mi3.11 mi7529-297954-100954-1008250(Top 28%)1236(Top 10%)1236(Top 22%)
HALF13.11 mi0.68 mi7555-26955-1955-18323(Top 29%)1242(Top 10%)1242(Top 22%)
25K15.53 mi2.42 mi7634-79995-40995-408318(Top 29%)1363(Top 11%)1363(Top 24%)
30K18.64 mi3.11 mi7599+351009-141009-147751(Top 27%)1269(Top 10%)1269(Top 22%)
20M20.00 mi1.36 mi7536+631000+91000+97501(Top 26%)1274(Top 10%)1274(Top 22%)
21M21.00 mi1.00 mi7545-91015-151015-158539(Top 29%)1826(Top 15%)1826(Top 32%)
35K21.75 mi0.75 mi7525+201020-51020-58076(Top 28%)1581(Top 13%)1581(Top 28%)
23M23.00 mi1.25 mi7531-61060-401060-409068(Top 31%)2121(Top 17%)2121(Top 37%)
24M24.00 mi1.00 mi7633-1021120-601120-6011331(Top 39%)3336(Top 27%)3336(Top 58%)
40K24.85 mi0.85 mi7728-951192-721192-7211177(Top 39%)3332(Top 26%)3332(Top 58%)
25.2M25.20 mi0.35 mi7760-321209-171209-1711348(Top 39%)3504(Top 28%)3504(Top 61%)
FINISH26.22 mi1.02 mi7871-1111285-761285-7611881(Top 41%)3791(Top 30%)3791(Top 66%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21
+97ft-345ft

Overall

8453

Females

1286

F18-39

1286

5K→10K

3.1 - 6.2 mi

Top 27%
×5
+79ft-138ft

Overall

7838

Females

1032

F18-39

1032

10K→15K

6.2 - 9.3 mi

Top 29%
×3
+67ft-78ft

Overall

8453

Females

1286

F18-39

1286

15K→20K

9.3 - 12.4 mi

Top 28%
×5
+106ft-86ft

Overall

8250

Females

1236

F18-39

1236

20K→HALF

12.4 - 13.1 mi

Top 29%
×2
+19ft-37ft

Overall

8323

Females

1242

F18-39

1242

HALF→25K

13.1 - 15.5 mi

Top 29%
×4
+66ft-88ft

Overall

8318

Females

1363

F18-39

1363

25K→30K

15.5 - 18.6 mi

Top 27%
×9
+181ft-148ft

Overall

7751

Females

1269

F18-39

1269

30K→20M

18.6 - 20.0 mi

Top 26%
×5
+64ft-50ft

Overall

7501

Females

1274

F18-39

1274

20M→21M

20.0 - 21.0 mi

Top 29%
×8
+106ft-24ft

Overall

8539

Females

1826

F18-39

1826

21M→35K

21.0 - 21.8 mi

Top 28%
×7
+17ft-86ft

Overall

8076

Females

1581

F18-39

1581

35K→23M

21.8 - 23.0 mi

Top 31%
×5
+23ft-63ft

Overall

9068

Females

2121

F18-39

2121

23M→24M

23.0 - 24.0 mi

Top 39%
×6
+12ft-82ft

Overall

11331

Females

3336

F18-39

3336

24M→40K

24.0 - 24.9 mi

Top 39%
×1
+6ft-20ft

Overall

11177

Females

3332

F18-39

3332

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1
+13ft-16ft

Overall

11348

Females

3504

F18-39

3504

25.2M→FINISH

25.2 - 26.2 mi

Top 41%
×2
+22ft-21ft

Overall

11881

Females

3791

F18-39

3791

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
809
Passed By
1645
Net Change
-2512
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5359
5K → 10K20200-1194#5359#6553
10K → 15K19200-679#6553#7232
15K → 20K67200-297#7232#7529
20K → HALF2046-26#7529#7555
HALF → 25K93172-79#7555#7634
25K → 30K154119+35#7634#7599
30K → 20M10138+63#7599#7536
20M → 21M5968-9#7536#7545
21M → 35K5636+20#7545#7525
35K → 23M8490-6#7525#7531
23M → 24M30132-102#7531#7633
24M → 40K55150-95#7633#7728
40K → 25.2M1244-32#7728#7760
25.2M → FINISH39150-111#7760#7871
TOTALS8091645-2512
📊

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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