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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Chelsea Frei

Bib: 19225 •F •Age: N/A

CA

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 36%
Gender (Female)
#0 / 12578
Top 20%
Masters (Masters Women)
#0 / 6862
Top 7%
Age Group (F40-44)
#0 / 1737
Top 16%
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
23:37
3.11 mi
Rank: #13658
Start → 5K
23:37 | 7:37/mi
10K
46:26
6.21 mi
Rank: #12606 (+1052)
5K → 10K
22:49 | 7:21/mi
15K
1:09:38
9.32 mi
Rank: #12566 (+40)
10K → 15K
23:12 | 7:29/mi
20K
1:32:55
12.43 mi
Rank: #12391 (+175)
15K → 20K
23:17 | 7:30/mi
HALF
1:37:58
13.11 mi
Rank: #12371 (+20)
20K → HALF
5:03 | 7:25/mi
25K
1:56:00
15.53 mi
Rank: #12128 (+243)
HALF → 25K
18:02 | 7:27/mi
30K
2:19:38
18.64 mi
Rank: #11809 (+319)
25K → 30K
23:38 | 7:37/mi
20M
2:30:00
20.00 mi
Rank: #11649 (+160)
30K → 20M
10:22 | 7:38/mi
21M
2:37:56
21.00 mi
Rank: #11482 (+167)
20M → 21M
7:56 | 7:56/mi
35K
2:43:25
21.75 mi
Rank: #11368 (+114)
21M → 35K
5:29 | 7:20/mi
23M
2:52:50
23.00 mi
Rank: #11172 (+196)
35K → 23M
9:25 | 7:32/mi
24M
3:00:03
24.00 mi
Rank: #10989 (+183)
23M → 24M
7:13 | 7:13/mi
40K
3:06:20
24.85 mi
Rank: #10827 (+162)
24M → 40K
6:17 | 7:21/mi
25.2M
3:09:01
25.20 mi
Rank: #10738 (+89)
40K → 25.2M
2:41 | 7:47/mi
FINISH
3:16:06
26.22 mi
Rank: #10590 (+148)
25.2M → FINISH
7:05 | 6:58/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half⚖️ Balanced
via HALF
Distance13.11 mi
Time1:37:58
Pace7:29 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:38:08
Pace7:30 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:06:4823:377:3723:37
7:37
-
10K
6.21 mi11:29:3746:267:2922:49
7:21
-0:16
15K
9.32 mi11:52:491:09:387:2923:12
7:29
+0:08
20K
12.43 mi12:16:061:32:557:2923:17
7:30
+0:01
HALF
13.11 mi12:21:091:37:587:295:03
7:25
-0:05
25K
15.53 mi12:39:111:56:007:2918:02
7:27
+0:02
30K
18.64 mi13:02:492:19:387:3023:38
7:37
+0:10
20M
20.00 mi13:13:112:30:007:3110:22
7:38
+0:01
21M
21.00 mi13:21:072:37:567:327:56
7:56
+0:18
35K
21.75 mi13:26:362:43:257:315:29
7:20
-0:36
23M
23.00 mi13:36:012:52:507:319:25
7:32
+0:12
24M
24.00 mi13:43:143:00:037:317:13
7:13
-0:19
40K
24.85 mi13:49:313:06:207:306:17
7:21
+0:08
25.2M
25.20 mi13:52:123:09:017:312:41
7:47
+0:26
FINISH
26.22 mi13:59:173:16:067:307:05
6:58
-0:49

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

6:58 /mi

Average Pace

7:29 /mi

Slowest Pace

7:56 /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

3:05:29

95% of race

Time at Steady Pace

10:37

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:29 /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 mi11:06:4823:377:3723:37
7:37
#13658
10K
6.21 mi11:29:3746:267:2922:49
7:21
#12606
15K
9.32 mi11:52:491:09:387:2923:12
7:29
#12566
20K
12.43 mi12:16:061:32:557:2923:17
7:30
#12391
HALF
13.11 mi12:21:091:37:587:295:03
7:25
#12371
25K
15.53 mi12:39:111:56:007:2918:02
7:27
#12128
30K
18.64 mi13:02:492:19:387:3023:38
7:37
#11809
20M
20.00 mi13:13:112:30:007:3110:22
7:38
#11649
21M
21.00 mi13:21:072:37:567:327:56
7:56
#11482
35K
21.75 mi13:26:362:43:257:315:29
7:20
#11368
23M
23.00 mi13:36:012:52:507:319:25
7:32
#11172
24M
24.00 mi13:43:143:00:037:317:13
7:13
#10989
40K
24.85 mi13:49:313:06:207:306:17
7:21
#10827
25.2M
25.20 mi13:52:123:09:017:312:41
7:47
#10738
FINISH
26.22 mi13:59:173:16:067:307:05
6:58
#10590
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi136583871387112540(Top 43%)3307(Top 26%)3307(Top 190%)
10K6.21 mi3.10 mi12606+10523284+5873284+58711548(Top 40%)2728(Top 22%)2728(Top 157%)
15K9.32 mi3.11 mi12566+403280+43280+412540(Top 43%)3307(Top 26%)3307(Top 190%)
20K12.43 mi3.11 mi12391+1753218+623218+6211926(Top 41%)3068(Top 24%)3068(Top 177%)
HALF13.11 mi0.68 mi12371+203209+93209+912214(Top 42%)3119(Top 25%)3119(Top 180%)
25K15.53 mi2.42 mi12128+2433101+1083101+10810903(Top 38%)2582(Top 21%)2582(Top 149%)
30K18.64 mi3.11 mi11809+3192980+1212980+12110503(Top 36%)2517(Top 20%)2517(Top 145%)
20M20.00 mi1.36 mi11649+1602898+822898+8210108(Top 35%)2451(Top 19%)2451(Top 141%)
21M21.00 mi1.00 mi11482+1672826+722826+729476(Top 33%)2244(Top 18%)2244(Top 129%)
35K21.75 mi0.75 mi11368+1142781+452781+459590(Top 33%)2300(Top 18%)2300(Top 132%)
23M23.00 mi1.25 mi11172+1962721+602721+609085(Top 31%)2138(Top 17%)2138(Top 123%)
24M24.00 mi1.00 mi10989+1832659+622659+628023(Top 28%)1742(Top 14%)1742(Top 100%)
40K24.85 mi0.85 mi10827+1622602+572602+577853(Top 27%)1744(Top 14%)1744(Top 100%)
25.2M25.20 mi0.35 mi10738+892562+402562+407096(Top 24%)1494(Top 12%)1494(Top 86%)
FINISH26.22 mi1.02 mi10590+1482513+492513+497216(Top 25%)1572(Top 12%)1572(Top 91%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21
+97ft-345ft

Overall

12540

Females

3307

F40-44

3307

5K→10K

3.1 - 6.2 mi

Top 40%
×5
+79ft-138ft

Overall

11548

Females

2728

F40-44

2728

10K→15K

6.2 - 9.3 mi

Top 43%
×3
+67ft-78ft

Overall

12540

Females

3307

F40-44

3307

15K→20K

9.3 - 12.4 mi

Top 41%
×5
+106ft-86ft

Overall

11926

Females

3068

F40-44

3068

20K→HALF

12.4 - 13.1 mi

Top 42%
×2
+19ft-37ft

Overall

12214

Females

3119

F40-44

3119

HALF→25K

13.1 - 15.5 mi

Top 38%
×4
+66ft-88ft

Overall

10903

Females

2582

F40-44

2582

25K→30K

15.5 - 18.6 mi

Top 36%
×9
+181ft-148ft

Overall

10503

Females

2517

F40-44

2517

30K→20M

18.6 - 20.0 mi

Top 35%
×5
+64ft-50ft

Overall

10108

Females

2451

F40-44

2451

20M→21M

20.0 - 21.0 mi

Top 33%
×8
+106ft-24ft

Overall

9476

Females

2244

F40-44

2244

21M→35K

21.0 - 21.8 mi

Top 33%
×7
+17ft-86ft

Overall

9590

Females

2300

F40-44

2300

35K→23M

21.8 - 23.0 mi

Top 31%
×5
+23ft-63ft

Overall

9085

Females

2138

F40-44

2138

23M→24M

23.0 - 24.0 mi

Top 28%
×6
+12ft-82ft

Overall

8023

Females

1742

F40-44

1742

24M→40K

24.0 - 24.9 mi

Top 27%
×1
+6ft-20ft

Overall

7853

Females

1744

F40-44

1744

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1
+13ft-16ft

Overall

7096

Females

1494

F40-44

1494

25.2M→FINISH

25.2 - 26.2 mi

Top 25%
×2
+22ft-21ft

Overall

7216

Females

1572

F40-44

1572

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3538*
Passed By
470
Net Change
+3068
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13658
5K → 10K1090*38+1052#13658#12606
10K → 15K212*172+40#12606#12566
15K → 20K242*67+175#12566#12391
20K → HALF3919+20#12391#12371
HALF → 25K268*25+243#12371#12128
25K → 30K359*40+319#12128#11809
30K → 20M18323+160#11809#11649
20M → 21M18417+167#11649#11482
21M → 35K12713+114#11482#11368
35K → 23M222*26+196#11368#11172
23M → 24M1918+183#11172#10989
24M → 40K17513+162#10989#10827
40K → 25.2M923+89#10827#10738
25.2M → FINISH1546+148#10738#10590
TOTALS3538*470+3068

* 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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