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BOSTON MARATHON 2025

Marilyn Tyer

Bib: 32216•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:23
Rank: #24109
Start → 5K
9:27/mi
29:23 split
10K· 6.21 mi
59:16
Rank: #24291 (-182)
5K → 10K
9:37/mi
29:53 split
15K· 9.32 mi
1:29:58
Rank: #24445 (-154)
10K → 15K
9:53/mi
30:42 split
20K· 12.43 mi
1:59:47
Rank: #24139 (+306)
15K → 20K
9:36/mi
29:49 split
Half· 13.11 mi
2:06:26
Rank: #24142 (-3)
20K → Half
9:45/mi
6:39 split
25K· 15.53 mi
2:31:05
Rank: #24048 (+94)
Half → 25K
10:10/mi
24:39 split
30K· 18.64 mi
3:03:19
Rank: #23774 (+274)
25K → 30K
10:22/mi
32:14 split
20M
3:17:46
Rank: #23691 (+83)
30K → 20M
10:38/mi
14:27 split
21M
3:28:48
Rank: #23563 (+128)
20M → 21M
11:02/mi
11:02 split
35K· 21.75 mi
3:36:25
Rank: #23511 (+52)
21M → 35K
10:11/mi
7:37 split
23M
3:50:33
Rank: #23533 (-22)
35K → 23M
11:17/mi
14:08 split
24M
4:01:02
Rank: #23492 (+41)
23M → 24M
10:29/mi
10:29 split
40K· 24.85 mi
4:10:20
Rank: #23483 (+9)
24M → 40K
10:53/mi
9:18 split
25.2M
4:14:06
Rank: #23417 (+66)
40K → 25.2M
10:55/mi
3:46 split
Finish· 26.22 mi
4:24:23
Rank: #23429 (-12)
25.2M → Finish
10:05/mi
10:17 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:06:26
Pace9:39 /mi
2nd Half
Distance13.11 mi
Time2:17:57
Pace10:31 /mi
📊Positive Split: 9.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:5029:239:2729:23
9:27
-
10K
6.21 mi12:22:4359:169:3229:53
9:37
+0:10
15K
9.32 mi12:53:251:29:589:3930:42
9:53
+0:16
20K
12.43 mi13:23:141:59:479:3829:49
9:36
-0:17
Half
13.11 mi13:29:532:06:269:396:39
9:45
+0:09
25K
15.53 mi13:54:322:31:059:4424:39
10:10
+0:25
30K
18.64 mi14:26:463:03:199:5032:14
10:22
+0:12
20M
20.00 mi14:41:133:17:469:5314:27
10:38
+0:16
21M
21.00 mi14:52:153:28:489:5711:02
11:02
+0:24
35K
21.75 mi14:59:523:36:259:577:37
10:11
-0:51
23M
23.00 mi15:14:003:50:3310:0114:08
11:17
+1:06
24M
24.00 mi15:24:294:01:0210:0310:29
10:29
-0:48
40K
24.85 mi15:33:474:10:2010:049:18
10:53
+0:24
25.2M
25.20 mi15:37:334:14:0610:053:46
10:55
+0:02
Finish
26.22 mi15:47:504:24:2310:0510:17
10:05
-0:50

Checkpoints & Pacing

📈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

9:27 /mi

Average Pace

10:05 /mi

Slowest Pace

11:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:21:13

76% of race

Time at Steady Pace

49:02

19% of race

Time at Slower Pace

14:08

5% of race

Average Pace: 10:05 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:52:5029:239:2729:23
9:27
#24109
10K
6.21 mi12:22:4359:169:3229:53
9:37
#24291
15K
9.32 mi12:53:251:29:589:3930:42
9:53
#24445
20K
12.43 mi13:23:141:59:479:3829:49
9:36
#24139
Half
13.11 mi13:29:532:06:269:396:39
9:45
#24142
25K
15.53 mi13:54:322:31:059:4424:39
10:10
#24048
30K
18.64 mi14:26:463:03:199:5032:14
10:22
#23774
20M
20.00 mi14:41:133:17:469:5314:27
10:38
#23691
21M
21.00 mi14:52:153:28:489:5711:02
11:02
#23563
35K
21.75 mi14:59:523:36:259:577:37
10:11
#23511
23M
23.00 mi15:14:003:50:3310:0114:08
11:17
#23533
24M
24.00 mi15:24:294:01:0210:0310:29
10:29
#23492
40K
24.85 mi15:33:474:10:2010:049:18
10:53
#23483
25.2M
25.20 mi15:37:334:14:0610:053:46
10:55
#23417
Finish
26.22 mi15:47:504:24:2310:0510:17
10:05
#23429
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi241099752975224734(Top 87%)10075(Top 82%)10075(Top 184%)
10K6.21 mi3.10 mi24291-1829840-889840-8824415(Top 86%)9922(Top 81%)9922(Top 181%)
15K9.32 mi3.11 mi24445-1549929-899929-8924734(Top 87%)10075(Top 82%)10075(Top 184%)
20K12.43 mi3.11 mi24139+3069768+1619768+16123201(Top 82%)9246(Top 76%)9246(Top 169%)
Half13.11 mi0.68 mi24142-39775-79775-724256(Top 85%)9845(Top 81%)9845(Top 180%)
25K15.53 mi2.42 mi24048+949735+409735+4023658(Top 83%)9567(Top 78%)9567(Top 175%)
30K18.64 mi3.11 mi23774+2749614+1219614+12122648(Top 80%)9132(Top 75%)9132(Top 167%)
20M20.00 mi1.36 mi23691+839594+209594+2022794(Top 80%)9310(Top 76%)9310(Top 170%)
21M21.00 mi1.00 mi23563+1289534+609534+6021513(Top 76%)8715(Top 71%)8715(Top 159%)
35K21.75 mi0.75 mi23511+529518+169518+1622403(Top 79%)9240(Top 76%)9240(Top 169%)
23M23.00 mi1.25 mi23533-229545-279545-2723865(Top 84%)10034(Top 82%)10034(Top 183%)
24M24.00 mi1.00 mi23492+419534+119534+1122786(Top 80%)9533(Top 78%)9533(Top 174%)
40K24.85 mi0.85 mi23483+99551-179551-1722867(Top 81%)9634(Top 79%)9634(Top 176%)
25.2M25.20 mi0.35 mi23417+669524+279524+2720454(Top 72%)8402(Top 69%)8402(Top 154%)
Finish26.22 mi1.02 mi23429-129547-239547-2323203(Top 82%)9769(Top 80%)9769(Top 179%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21story building
+97ft-345ft

Overall

24734

Females

10075

F18-39

10075

5K→10K

3.1 - 6.2 mi

Top 86%
×5story building
+79ft-138ft

Overall

24415

Females

9922

F18-39

9922

10K→15K

6.2 - 9.3 mi

Top 87%
×3story building
+67ft-78ft

Overall

24734

Females

10075

F18-39

10075

15K→20K

9.3 - 12.4 mi

Top 82%
×5story building
+106ft-86ft

Overall

23201

Females

9246

F18-39

9246

20K→Half

12.4 - 13.1 mi

Top 85%
×2story building
+19ft-37ft

Overall

24256

Females

9845

F18-39

9845

Half→25K

13.1 - 15.5 mi

Top 83%
×4story building
+66ft-88ft

Overall

23658

Females

9567

F18-39

9567

25K→30K

15.5 - 18.6 mi

Top 80%
×9story building
+181ft-148ft

Overall

22648

Females

9132

F18-39

9132

30K→20M

18.6 - 20.0 mi

Top 80%
×5story building
+64ft-50ft

Overall

22794

Females

9310

F18-39

9310

20M→21M

20.0 - 21.0 mi

Top 76%
×8story building
+106ft-24ft

Overall

21513

Females

8715

F18-39

8715

21M→35K

21.0 - 21.8 mi

Top 79%
×7story building
+17ft-86ft

Overall

22403

Females

9240

F18-39

9240

35K→23M

21.8 - 23.0 mi

Top 84%
×5story building
+23ft-63ft

Overall

23865

Females

10034

F18-39

10034

23M→24M

23.0 - 24.0 mi

Top 80%
×6story building
+12ft-82ft

Overall

22786

Females

9533

F18-39

9533

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

22867

Females

9634

F18-39

9634

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

20454

Females

8402

F18-39

8402

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2story building
+22ft-21ft

Overall

23203

Females

9769

F18-39

9769

Passing Analysis

Category:
Athletes Passed
1689
Passed By
1009
Net Change
+680
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24109
5K → 10K157339-182#24109#24291
10K → 15K89243-154#24291#24445
15K → 20K32418+306#24445#24139
20K → Half2124-3#24139#24142
Half → 25K16571+94#24142#24048
25K → 30K31541+274#24048#23774
30K → 20M11835+83#23774#23691
20M → 21M14315+128#23691#23563
21M → 35K7018+52#23563#23511
35K → 23M6890-22#23511#23533
23M → 24M6524+41#23533#23492
24M → 40K4940+9#23492#23483
40K → 25.2M693+66#23483#23417
25.2M → Finish3648-12#23417#23429
TOTALS16891009+680
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing