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BOSTON MARATHON 2025

Sean Glynn

Bib: 28407•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:06
Rank: #8764
Start → 5K
22:06 | 7:07/mi
10K· 6.21 mi
43:41
Rank: #8094 (+670)
5K → 10K
21:35 | 6:57/mi
15K· 9.32 mi
1:06:10
Rank: #8476 (-382)
10K → 15K
22:29 | 7:14/mi
20K· 12.43 mi
1:29:28
Rank: #8985 (-509)
15K → 20K
23:18 | 7:30/mi
Half· 13.11 mi
1:34:38
Rank: #9162 (-177)
20K → Half
5:10 | 7:34/mi
25K· 15.53 mi
1:55:24
Rank: #10683 (-1521)
Half → 25K
20:46 | 8:34/mi
30K· 18.64 mi
2:23:46
Rank: #12375 (-1692)
25K → 30K
28:22 | 9:08/mi
20M
2:36:00
Rank: #12724 (-349)
30K → 20M
12:14 | 9:00/mi
21M
2:47:37
Rank: #13709 (-985)
20M → 21M
11:37 | 11:37/mi
35K· 21.75 mi
2:55:06
Rank: #14209 (-500)
21M → 35K
7:29 | 10:00/mi
23M
3:07:08
Rank: #14560 (-351)
35K → 23M
12:02 | 9:37/mi
24M
3:15:48
Rank: #14601 (-41)
23M → 24M
8:40 | 8:40/mi
40K· 24.85 mi
3:23:45
Rank: #14725 (-124)
24M → 40K
7:57 | 9:18/mi
25.2M
3:27:05
Rank: #14729 (-4)
40K → 25.2M
3:20 | 9:40/mi
Finish· 26.22 mi
3:35:38
Rank: #14729
25.2M → Finish
8:33 | 8:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:38
Pace7:13 /mi
2nd Half
Distance13.11 mi
Time2:01:00
Pace9:14 /mi
📊Positive Split: 27.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:39:5322:067:0722:06
7:07
-
10K
6.21 mi12:01:2843:417:0221:35
6:57
-0:10
15K
9.32 mi12:23:571:06:107:0622:29
7:14
+0:17
20K
12.43 mi12:47:151:29:287:1223:18
7:30
+0:16
Half
13.11 mi12:52:251:34:387:135:10
7:34
+0:04
25K
15.53 mi13:13:111:55:247:2620:46
8:34
+1:00
30K
18.64 mi13:41:332:23:467:4328:22
9:08
+0:34
20M
20.00 mi13:53:472:36:007:4812:14
9:00
-0:08
21M
21.00 mi14:05:242:47:377:5911:37
11:37
+2:37
35K
21.75 mi14:12:532:55:068:037:29
10:00
-1:37
23M
23.00 mi14:24:553:07:088:0812:02
9:37
-0:23
24M
24.00 mi14:33:353:15:488:108:40
8:40
-0:57
40K
24.85 mi14:41:323:23:458:127:57
9:18
+0:38
25.2M
25.20 mi14:44:523:27:058:133:20
9:40
+0:22
Finish
26.22 mi14:53:253:35:388:148:33
8:23
-1:17

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

6:57 /mi

Average Pace

8:14 /mi

Slowest Pace

11:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:34:38

44% of race

Time at Steady Pace

1:18:35

36% of race

Time at Slower Pace

42:25

20% of race

Average Pace: 8:13 /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 mi11:39:5322:067:0722:06
7:07
#8764
10K
6.21 mi12:01:2843:417:0221:35
6:57
#8094
15K
9.32 mi12:23:571:06:107:0622:29
7:14
#8476
20K
12.43 mi12:47:151:29:287:1223:18
7:30
#8985
Half
13.11 mi12:52:251:34:387:135:10
7:34
#9162
25K
15.53 mi13:13:111:55:247:2620:46
8:34
#10683
30K
18.64 mi13:41:332:23:467:4328:22
9:08
#12375
20M
20.00 mi13:53:472:36:007:4812:14
9:00
#12724
21M
21.00 mi14:05:242:47:377:5911:37
11:37
#13709
35K
21.75 mi14:12:532:55:068:037:29
10:00
#14209
23M
23.00 mi14:24:553:07:088:0812:02
9:37
#14560
24M
24.00 mi14:33:353:15:488:108:40
8:40
#14601
40K
24.85 mi14:41:323:23:458:127:57
9:18
#14725
25.2M
25.20 mi14:44:523:27:058:133:20
9:40
#14729
Finish
26.22 mi14:53:253:35:388:148:33
8:23
#14729
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi8764748074809431(Top 33%)7789(Top 48%)7789(Top 138%)
10K6.21 mi3.10 mi8094+6707049+4317049+4317601(Top 27%)6718(Top 42%)6718(Top 119%)
15K9.32 mi3.11 mi8476-3827270-2217270-2219431(Top 33%)7789(Top 48%)7789(Top 138%)
20K12.43 mi3.11 mi8985-5097556-2867556-28610764(Top 38%)8390(Top 52%)8390(Top 149%)
Half13.11 mi0.68 mi9162-1777655-997655-9912327(Top 43%)9182(Top 57%)9182(Top 163%)
25K15.53 mi2.42 mi10683-15218434-7798434-77917560(Top 62%)11338(Top 70%)11338(Top 201%)
30K18.64 mi3.11 mi12375-16929143-7099143-70918305(Top 64%)11509(Top 71%)11509(Top 204%)
20M20.00 mi1.36 mi12724-3499264-1219264-12116782(Top 59%)10714(Top 67%)10714(Top 190%)
21M21.00 mi1.00 mi13709-9859663-3999663-39922839(Top 80%)13359(Top 83%)13359(Top 237%)
35K21.75 mi0.75 mi14209-5009872-2099872-20921888(Top 77%)12841(Top 80%)12841(Top 228%)
23M23.00 mi1.25 mi14560-3519997-1259997-12519105(Top 67%)11488(Top 71%)11488(Top 204%)
24M24.00 mi1.00 mi14601-419985+129985+1215517(Top 55%)9820(Top 61%)9820(Top 174%)
40K24.85 mi0.85 mi14725-12410005-2010005-2017817(Top 63%)10722(Top 67%)10722(Top 190%)
25.2M25.20 mi0.35 mi14729-410001+410001+415382(Top 54%)9577(Top 59%)9577(Top 170%)
Finish26.22 mi1.02 mi147299974+279974+2715487(Top 55%)9702(Top 60%)9702(Top 172%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21stories
+97ft-345ft

Overall

9431

Males

7789

M18-39

7789

5K→10K

3.1 - 6.2 mi

Top 27%
×5stories
+79ft-138ft

Overall

7601

Males

6718

M18-39

6718

10K→15K

6.2 - 9.3 mi

Top 33%
×3stories
+67ft-78ft

Overall

9431

Males

7789

M18-39

7789

15K→20K

9.3 - 12.4 mi

Top 38%
×5stories
+106ft-86ft

Overall

10764

Males

8390

M18-39

8390

20K→Half

12.4 - 13.1 mi

Top 43%
×2stories
+19ft-37ft

Overall

12327

Males

9182

M18-39

9182

Half→25K

13.1 - 15.5 mi

Top 62%
×4stories
+66ft-88ft

Overall

17560

Males

11338

M18-39

11338

25K→30K

15.5 - 18.6 mi

Top 64%
×9stories
+181ft-148ft

Overall

18305

Males

11509

M18-39

11509

30K→20M

18.6 - 20.0 mi

Top 59%
×5stories
+64ft-50ft

Overall

16782

Males

10714

M18-39

10714

20M→21M

20.0 - 21.0 mi

Top 80%
×8stories
+106ft-24ft

Overall

22839

Males

13359

M18-39

13359

21M→35K

21.0 - 21.8 mi

Top 77%
×7stories
+17ft-86ft

Overall

21888

Males

12841

M18-39

12841

35K→23M

21.8 - 23.0 mi

Top 67%
×5stories
+23ft-63ft

Overall

19105

Males

11488

M18-39

11488

23M→24M

23.0 - 24.0 mi

Top 55%
×6stories
+12ft-82ft

Overall

15517

Males

9820

M18-39

9820

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

17817

Males

10722

M18-39

10722

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

15382

Males

9577

M18-39

9577

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2stories
+22ft-21ft

Overall

15487

Males

9702

M18-39

9702

Passing Analysis

Category:
Athletes Passed
1185
Passed By
7148
Net Change
-5965
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8764
5K → 10K69828+670#8764#8094
10K → 15K54436-382#8094#8476
15K → 20K62571-509#8476#8985
20K → Half4181-177#8985#9162
Half → 25K181537-1521#9162#10683
25K → 30K271719-1692#10683#12375
30K → 20M49398-349#12375#12724
20M → 21M10995-985#12724#13709
21M → 35K6506-500#13709#14209
35K → 23M41392-351#14209#14560
23M → 24M62103-41#14560#14601
24M → 40K39163-124#14601#14725
40K → 25.2M3943-4#14725#14729
25.2M → Finish76760#14729#14729
TOTALS11857148-5965
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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