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BOSTON MARATHON 2026

Stephanie Teoh

Bib: 21689 •F •Age: N/A

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Age Group (F40-44)
#0 / 1737
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
26:55
3.11 mi
Rank: #21005
Start → 5K
26:55 | 8:40/mi
10K
52:56
6.21 mi
Rank: #20278 (+727)
5K → 10K
26:01 | 8:23/mi
15K
1:19:17
9.32 mi
Rank: #20171 (+107)
10K → 15K
26:21 | 8:29/mi
20K
1:46:47
12.43 mi
Rank: #20447 (-276)
15K → 20K
27:30 | 8:52/mi
HALF
1:52:49
13.11 mi
Rank: #20534 (-87)
20K → HALF
6:02 | 8:52/mi
25K
2:14:35
15.53 mi
Rank: #20639 (-105)
HALF → 25K
21:46 | 8:59/mi
30K
2:44:40
18.64 mi
Rank: #20984 (-345)
25K → 30K
30:05 | 9:41/mi
20M
2:57:39
20.00 mi
Rank: #20999 (-15)
30K → 20M
12:59 | 9:34/mi
21M
3:08:12
21.00 mi
Rank: #21103 (-104)
20M → 21M
10:33 | 10:33/mi
35K
3:15:05
21.75 mi
Rank: #21100 (+3)
21M → 35K
6:53 | 9:13/mi
23M
3:26:57
23.00 mi
Rank: #21069 (+31)
35K → 23M
11:52 | 9:29/mi
24M
3:36:09
24.00 mi
Rank: #21046 (+23)
23M → 24M
9:12 | 9:12/mi
40K
3:44:07
24.85 mi
Rank: #21006 (+40)
24M → 40K
7:58 | 9:20/mi
25.2M
3:47:35
25.20 mi
Rank: #20989 (+17)
40K → 25.2M
3:28 | 10:04/mi
FINISH
3:56:39
26.22 mi
Rank: #20967 (+22)
25.2M → FINISH
9:04 | 8:54/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:52:49
Pace8:37 /mi
2nd Half
Distance13.11 mi
Time2:03:50
Pace9:27 /mi
📊Positive Split: 9.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:2926:558:4026:55
8:40
-
10K
6.21 mi12:16:3052:568:3226:01
8:23
-0:17
15K
9.32 mi12:42:511:19:178:3126:21
8:29
+0:06
20K
12.43 mi13:10:211:46:478:3627:30
8:52
+0:23
HALF
13.11 mi13:16:231:52:498:376:02
8:52
0:00
25K
15.53 mi13:38:092:14:358:4021:46
8:59
+0:07
30K
18.64 mi14:08:142:44:408:5130:05
9:41
+0:42
20M
20.00 mi14:21:132:57:398:5312:59
9:34
-0:07
21M
21.00 mi14:31:463:08:128:5810:33
10:33
+0:59
35K
21.75 mi14:38:393:15:058:596:53
9:13
-1:20
23M
23.00 mi14:50:313:26:579:0011:52
9:29
+0:16
24M
24.00 mi14:59:433:36:099:019:12
9:12
-0:17
40K
24.85 mi15:07:413:44:079:027:58
9:20
+0:08
25.2M
25.20 mi15:11:093:47:359:023:28
10:04
+0:44
FINISH
26.22 mi15:20:133:56:399:029:04
8:54
-1:10

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

9:02 /mi

Slowest Pace

10:33 /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

2:01:53

52% of race

Time at Steady Pace

57:41

24% of race

Time at Slower Pace

57:05

24% of race

Average Pace: 9:02 /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 mi11:50:2926:558:4026:55
8:40
#21005
10K
6.21 mi12:16:3052:568:3226:01
8:23
#20278
15K
9.32 mi12:42:511:19:178:3126:21
8:29
#20171
20K
12.43 mi13:10:211:46:478:3627:30
8:52
#20447
HALF
13.11 mi13:16:231:52:498:376:02
8:52
#20534
25K
15.53 mi13:38:092:14:358:4021:46
8:59
#20639
30K
18.64 mi14:08:142:44:408:5130:05
9:41
#20984
20M
20.00 mi14:21:132:57:398:5312:59
9:34
#20999
21M
21.00 mi14:31:463:08:128:5810:33
10:33
#21103
35K
21.75 mi14:38:393:15:058:596:53
9:13
#21100
23M
23.00 mi14:50:313:26:579:0011:52
9:29
#21069
24M
24.00 mi14:59:433:36:099:019:12
9:12
#21046
40K
24.85 mi15:07:413:44:079:027:58
9:20
#21006
25.2M
25.20 mi15:11:093:47:359:023:28
10:04
#20989
FINISH
26.22 mi15:20:133:56:399:029:04
8:54
#20967
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 mi210058171817120051(Top 69%)7621(Top 61%)7621(Top 439%)
10K6.21 mi3.10 mi20278+7277763+4087763+40819639(Top 68%)7402(Top 59%)7402(Top 426%)
15K9.32 mi3.11 mi20171+1077706+577706+5720051(Top 69%)7621(Top 61%)7621(Top 439%)
20K12.43 mi3.11 mi20447-2767857-1517857-15121246(Top 73%)8265(Top 66%)8265(Top 476%)
HALF13.11 mi0.68 mi20534-877905-487905-4822075(Top 76%)8665(Top 69%)8665(Top 499%)
25K15.53 mi2.42 mi20639-1057976-717976-7121072(Top 73%)8203(Top 65%)8203(Top 472%)
30K18.64 mi3.11 mi20984-3458177-2018177-20122208(Top 77%)8870(Top 71%)8870(Top 511%)
20M20.00 mi1.36 mi20999-158195-188195-1821290(Top 73%)8493(Top 68%)8493(Top 489%)
21M21.00 mi1.00 mi21103-1048247-528247-5222095(Top 76%)8935(Top 71%)8935(Top 514%)
35K21.75 mi0.75 mi21100+38250-38250-320823(Top 72%)8355(Top 66%)8355(Top 481%)
23M23.00 mi1.25 mi21069+318245+58245+520557(Top 71%)8236(Top 65%)8236(Top 474%)
24M24.00 mi1.00 mi21046+238245824520281(Top 70%)8197(Top 65%)8197(Top 472%)
40K24.85 mi0.85 mi21006+408242+38242+319762(Top 68%)7960(Top 63%)7960(Top 458%)
25.2M25.20 mi0.35 mi20989+178236+68236+619640(Top 68%)7895(Top 63%)7895(Top 455%)
FINISH26.22 mi1.02 mi20967+228239-38239-320111(Top 69%)8140(Top 65%)8140(Top 469%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21
+97ft-345ft

Overall

20051

Females

7621

F40-44

7621

5K→10K

3.1 - 6.2 mi

Top 68%
×5
+79ft-138ft

Overall

19639

Females

7402

F40-44

7402

10K→15K

6.2 - 9.3 mi

Top 69%
×3
+67ft-78ft

Overall

20051

Females

7621

F40-44

7621

15K→20K

9.3 - 12.4 mi

Top 73%
×5
+106ft-86ft

Overall

21246

Females

8265

F40-44

8265

20K→HALF

12.4 - 13.1 mi

Top 76%
×2
+19ft-37ft

Overall

22075

Females

8665

F40-44

8665

HALF→25K

13.1 - 15.5 mi

Top 73%
×4
+66ft-88ft

Overall

21072

Females

8203

F40-44

8203

25K→30K

15.5 - 18.6 mi

Top 77%
×9
+181ft-148ft

Overall

22208

Females

8870

F40-44

8870

30K→20M

18.6 - 20.0 mi

Top 73%
×5
+64ft-50ft

Overall

21290

Females

8493

F40-44

8493

20M→21M

20.0 - 21.0 mi

Top 76%
×8
+106ft-24ft

Overall

22095

Females

8935

F40-44

8935

21M→35K

21.0 - 21.8 mi

Top 72%
×7
+17ft-86ft

Overall

20823

Females

8355

F40-44

8355

35K→23M

21.8 - 23.0 mi

Top 71%
×5
+23ft-63ft

Overall

20557

Females

8236

F40-44

8236

23M→24M

23.0 - 24.0 mi

Top 70%
×6
+12ft-82ft

Overall

20281

Females

8197

F40-44

8197

24M→40K

24.0 - 24.9 mi

Top 68%
×1
+6ft-20ft

Overall

19762

Females

7960

F40-44

7960

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1
+13ft-16ft

Overall

19640

Females

7895

F40-44

7895

25.2M→FINISH

25.2 - 26.2 mi

Top 69%
×2
+22ft-21ft

Overall

20111

Females

8140

F40-44

8140

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1839*
Passed By
1403
Net Change
+38
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21005
5K → 10K807*80+727#21005#20278
10K → 15K244*137+107#20278#20171
15K → 20K87200-276#20171#20447
20K → HALF13100-87#20447#20534
HALF → 25K107200-105#20534#20639
25K → 30K78200-345#20639#20984
30K → 20M7186-15#20984#20999
20M → 21M43147-104#20999#21103
21M → 35K5148+3#21103#21100
35K → 23M9261+31#21100#21069
23M → 24M6542+23#21069#21046
24M → 40K8141+40#21046#21006
40K → 25.2M3316+17#21006#20989
25.2M → FINISH6745+22#20989#20967
TOTALS1839*1403+38

* 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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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing