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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Chia Pei Chen

Bib: 22837 •F •Age: N/A

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Age Group (F45-49)
#0 / 1786
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
26:22
3.11 mi
Rank: #20016
Start → 5K
26:22 | 8:30/mi
10K
52:45
6.21 mi
Rank: #20121 (-105)
5K → 10K
26:23 | 8:30/mi
15K
1:19:14
9.32 mi
Rank: #20144 (-23)
10K → 15K
26:29 | 8:32/mi
20K
1:46:25
12.43 mi
Rank: #20258 (-114)
15K → 20K
27:11 | 8:45/mi
HALF
1:52:21
13.11 mi
Rank: #20333 (-75)
20K → HALF
5:56 | 8:43/mi
25K
2:14:17
15.53 mi
Rank: #20531 (-198)
HALF → 25K
21:56 | 9:03/mi
30K
2:43:05
18.64 mi
Rank: #20591 (-60)
25K → 30K
28:48 | 9:17/mi
20M
2:55:33
20.00 mi
Rank: #20520 (+71)
30K → 20M
12:28 | 9:11/mi
21M
3:05:04
21.00 mi
Rank: #20403 (+117)
20M → 21M
9:31 | 9:31/mi
35K
3:11:53
21.75 mi
Rank: #20404 (-1)
21M → 35K
6:49 | 9:07/mi
23M
3:23:11
23.00 mi
Rank: #20310 (+94)
35K → 23M
11:18 | 9:02/mi
24M
3:31:55
24.00 mi
Rank: #20217 (+93)
23M → 24M
8:44 | 8:44/mi
40K
3:39:27
24.85 mi
Rank: #20107 (+110)
24M → 40K
7:32 | 8:49/mi
25.2M
3:42:43
25.20 mi
Rank: #20077 (+30)
40K → 25.2M
3:16 | 9:29/mi
FINISH
3:51:17
26.22 mi
Rank: #19984 (+93)
25.2M → FINISH
8:34 | 8:25/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
Time1:52:21
Pace8:35 /mi
2nd Half
Distance13.11 mi
Time1:58:56
Pace9:05 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:29:0926:228:3026:22
8:30
-
10K
6.21 mi11:55:3252:458:3026:23
8:30
0:00
15K
9.32 mi12:22:011:19:148:3126:29
8:32
+0:02
20K
12.43 mi12:49:121:46:258:3427:11
8:45
+0:13
HALF
13.11 mi12:55:081:52:218:355:56
8:43
-0:02
25K
15.53 mi13:17:042:14:178:3921:56
9:03
+0:20
30K
18.64 mi13:45:522:43:058:4528:48
9:17
+0:14
20M
20.00 mi13:58:202:55:338:4712:28
9:11
-0:06
21M
21.00 mi14:07:513:05:048:499:31
9:31
+0:20
35K
21.75 mi14:14:403:11:538:506:49
9:07
-0:24
23M
23.00 mi14:25:583:23:118:5111:18
9:02
-0:05
24M
24.00 mi14:34:423:31:558:508:44
8:44
-0:18
40K
24.85 mi14:42:143:39:278:507:32
8:49
+0:05
25.2M
25.20 mi14:45:303:42:438:513:16
9:29
+0:40
FINISH
26.22 mi14:54:043:51:178:508:34
8:25
-1:04

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

8:25 /mi

Average Pace

8:50 /mi

Slowest Pace

9:31 /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

3:09:42

82% of race

Time at Steady Pace

41:35

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:49 /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 mi11:29:0926:228:3026:22
8:30
#20016
10K
6.21 mi11:55:3252:458:3026:23
8:30
#20121
15K
9.32 mi12:22:011:19:148:3126:29
8:32
#20144
20K
12.43 mi12:49:121:46:258:3427:11
8:45
#20258
HALF
13.11 mi12:55:081:52:218:355:56
8:43
#20333
25K
15.53 mi13:17:042:14:178:3921:56
9:03
#20531
30K
18.64 mi13:45:522:43:058:4528:48
9:17
#20591
20M
20.00 mi13:58:202:55:338:4712:28
9:11
#20520
21M
21.00 mi14:07:513:05:048:499:31
9:31
#20403
35K
21.75 mi14:14:403:11:538:506:49
9:07
#20404
23M
23.00 mi14:25:583:23:118:5111:18
9:02
#20310
24M
24.00 mi14:34:423:31:558:508:44
8:44
#20217
40K
24.85 mi14:42:143:39:278:507:32
8:49
#20107
25.2M
25.20 mi14:45:303:42:438:513:16
9:29
#20077
FINISH
26.22 mi14:54:043:51:178:508:34
8:25
#19984
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi200167645764520304(Top 70%)7750(Top 62%)7750(Top 434%)
10K6.21 mi3.10 mi20121-1057674-297674-2920308(Top 70%)7758(Top 62%)7758(Top 434%)
15K9.32 mi3.11 mi20144-237690-167690-1620304(Top 70%)7750(Top 62%)7750(Top 434%)
20K12.43 mi3.11 mi20258-1147763-737763-7320709(Top 71%)7996(Top 64%)7996(Top 448%)
HALF13.11 mi0.68 mi20333-757802-397802-3921363(Top 74%)8290(Top 66%)8290(Top 464%)
25K15.53 mi2.42 mi20531-1987920-1187920-11821380(Top 74%)8358(Top 66%)8358(Top 468%)
30K18.64 mi3.11 mi20591-607973-537973-5320828(Top 72%)8171(Top 65%)8171(Top 458%)
20M20.00 mi1.36 mi20520+717936+377936+3719792(Top 68%)7706(Top 61%)7706(Top 431%)
21M21.00 mi1.00 mi20403+1177894+427894+4218614(Top 64%)7125(Top 57%)7125(Top 399%)
35K21.75 mi0.75 mi20404-17901-77901-720471(Top 71%)8177(Top 65%)8177(Top 458%)
23M23.00 mi1.25 mi20310+947861+407861+4018651(Top 64%)7305(Top 58%)7305(Top 409%)
24M24.00 mi1.00 mi20217+937835+267835+2618225(Top 63%)7107(Top 57%)7107(Top 398%)
40K24.85 mi0.85 mi20107+1107805+307805+3017486(Top 60%)6784(Top 54%)6784(Top 380%)
25.2M25.20 mi0.35 mi20077+307796+97796+917278(Top 60%)6677(Top 53%)6677(Top 374%)
FINISH26.22 mi1.02 mi19984+937762+347762+3417684(Top 61%)6885(Top 55%)6885(Top 385%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21
+97ft-345ft

Overall

20304

Females

7750

F45-49

7750

5K→10K

3.1 - 6.2 mi

Top 70%
×5
+79ft-138ft

Overall

20308

Females

7758

F45-49

7758

10K→15K

6.2 - 9.3 mi

Top 70%
×3
+67ft-78ft

Overall

20304

Females

7750

F45-49

7750

15K→20K

9.3 - 12.4 mi

Top 71%
×5
+106ft-86ft

Overall

20709

Females

7996

F45-49

7996

20K→HALF

12.4 - 13.1 mi

Top 74%
×2
+19ft-37ft

Overall

21363

Females

8290

F45-49

8290

HALF→25K

13.1 - 15.5 mi

Top 74%
×4
+66ft-88ft

Overall

21380

Females

8358

F45-49

8358

25K→30K

15.5 - 18.6 mi

Top 72%
×9
+181ft-148ft

Overall

20828

Females

8171

F45-49

8171

30K→20M

18.6 - 20.0 mi

Top 68%
×5
+64ft-50ft

Overall

19792

Females

7706

F45-49

7706

20M→21M

20.0 - 21.0 mi

Top 64%
×8
+106ft-24ft

Overall

18614

Females

7125

F45-49

7125

21M→35K

21.0 - 21.8 mi

Top 71%
×7
+17ft-86ft

Overall

20471

Females

8177

F45-49

8177

35K→23M

21.8 - 23.0 mi

Top 64%
×5
+23ft-63ft

Overall

18651

Females

7305

F45-49

7305

23M→24M

23.0 - 24.0 mi

Top 63%
×6
+12ft-82ft

Overall

18225

Females

7107

F45-49

7107

24M→40K

24.0 - 24.9 mi

Top 60%
×1
+6ft-20ft

Overall

17486

Females

6784

F45-49

6784

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1
+13ft-16ft

Overall

17278

Females

6677

F45-49

6677

25.2M→FINISH

25.2 - 26.2 mi

Top 61%
×2
+22ft-21ft

Overall

17684

Females

6885

F45-49

6885

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1540
Passed By
1276
Net Change
+32
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20016
5K → 10K200200-105#20016#20121
10K → 15K171194-23#20121#20144
15K → 20K121200-114#20144#20258
20K → HALF1691-75#20258#20333
HALF → 25K79200-198#20333#20531
25K → 30K155200-60#20531#20591
30K → 20M12453+71#20591#20520
20M → 21M14326+117#20520#20403
21M → 35K3637-1#20403#20404
35K → 23M11420+94#20404#20310
23M → 24M11017+93#20310#20217
24M → 40K12414+110#20217#20107
40K → 25.2M4010+30#20107#20077
25.2M → FINISH10714+93#20077#19984
TOTALS15401276+32
📊

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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