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BOSTON MARATHON 2025

Thomas Sullivan

Bib: 4240•M

OH

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Overall
#0 / 28404
Top 14%
Gender (Male)
#0 / 16105
Top 22%
Division (M18-39)
#0 / 5642
Top 47%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:36
Rank: #2492
Start → 5K
19:36 | 6:19/mi
10K· 6.21 mi
39:17
Rank: #2569 (-77)
5K → 10K
19:41 | 6:20/mi
15K· 9.32 mi
58:53
Rank: #2489 (+80)
10K → 15K
19:36 | 6:19/mi
20K· 12.43 mi
1:19:42
Rank: #2949 (-460)
15K → 20K
20:49 | 6:42/mi
Half· 13.11 mi
1:23:54
Rank: #2863 (+86)
20K → Half
4:12 | 6:09/mi
25K· 15.53 mi
1:39:07
Rank: #2630 (+233)
Half → 25K
15:13 | 6:17/mi
30K· 18.64 mi
1:59:49
Rank: #2591 (+39)
25K → 30K
20:42 | 6:40/mi
20M
2:09:22
Rank: #2678 (-87)
30K → 20M
9:33 | 7:02/mi
21M
2:17:18
Rank: #2893 (-215)
20M → 21M
7:56 | 7:56/mi
35K· 21.75 mi
2:22:41
Rank: #2966 (-73)
21M → 35K
5:23 | 7:12/mi
23M
2:31:59
Rank: #3090 (-124)
35K → 23M
9:18 | 7:26/mi
24M
2:39:25
Rank: #3233 (-143)
23M → 24M
7:26 | 7:26/mi
40K· 24.85 mi
2:45:58
Rank: #3367 (-134)
24M → 40K
6:33 | 7:40/mi
25.2M
2:48:49
Rank: #3408 (-41)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
2:57:32
Rank: #3898 (-490)
25.2M → Finish
8:43 | 8:33/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:54
Pace6:24 /mi
2nd Half
Distance13.11 mi
Time1:33:38
Pace7:09 /mi
📊Positive Split: 11.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:4419:366:1919:36
6:19
-
10K
6.21 mi10:41:2539:176:1919:41
6:20
+0:01
15K
9.32 mi11:01:0158:536:1919:36
6:19
-0:01
20K
12.43 mi11:21:501:19:426:2520:49
6:42
+0:23
Half
13.11 mi11:26:021:23:546:244:12
6:09
-0:33
25K
15.53 mi11:41:151:39:076:2315:13
6:17
+0:08
30K
18.64 mi12:01:571:59:496:2620:42
6:40
+0:23
20M
20.00 mi12:11:302:09:226:289:33
7:02
+0:22
21M
21.00 mi12:19:262:17:186:327:56
7:56
+0:54
35K
21.75 mi12:24:492:22:416:345:23
7:12
-0:44
23M
23.00 mi12:34:072:31:596:369:18
7:26
+0:14
24M
24.00 mi12:41:332:39:256:397:26
7:26
0:00
40K
24.85 mi12:48:062:45:586:416:33
7:40
+0:14
25.2M
25.20 mi12:50:572:48:496:422:51
8:16
+0:36
Finish
26.22 mi12:59:402:57:326:478:43
8:33
+0:17

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

6:09 /mi

Average Pace

6:47 /mi

Slowest Pace

8:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:18:18

44% of race

Time at Steady Pace

56:27

32% of race

Time at Slower Pace

42:47

24% of race

Average Pace: 6:46 /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 mi10:21:4419:366:1919:36
6:19
#2492
10K
6.21 mi10:41:2539:176:1919:41
6:20
#2569
15K
9.32 mi11:01:0158:536:1919:36
6:19
#2489
20K
12.43 mi11:21:501:19:426:2520:49
6:42
#2949
Half
13.11 mi11:26:021:23:546:244:12
6:09
#2863
25K
15.53 mi11:41:151:39:076:2315:13
6:17
#2630
30K
18.64 mi12:01:571:59:496:2620:42
6:40
#2591
20M
20.00 mi12:11:302:09:226:289:33
7:02
#2678
21M
21.00 mi12:19:262:17:186:327:56
7:56
#2893
35K
21.75 mi12:24:492:22:416:345:23
7:12
#2966
23M
23.00 mi12:34:072:31:596:369:18
7:26
#3090
24M
24.00 mi12:41:332:39:256:397:26
7:26
#3233
40K
24.85 mi12:48:062:45:586:416:33
7:40
#3367
25.2M
25.20 mi12:50:572:48:496:422:51
8:16
#3408
Finish
26.22 mi12:59:402:57:326:478:43
8:33
#3898
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2492237423742378(Top 8%)2268(Top 14%)2268(Top 40%)
10K6.21 mi3.10 mi2569-772447-732447-732645(Top 9%)2522(Top 16%)2522(Top 45%)
15K9.32 mi3.11 mi2489+802375+722375+722378(Top 8%)2268(Top 14%)2268(Top 40%)
20K12.43 mi3.11 mi2949-4602810-4352810-4354421(Top 16%)4125(Top 26%)4125(Top 73%)
Half13.11 mi0.68 mi2863+862729+812729+811775(Top 6%)1691(Top 10%)1691(Top 30%)
25K15.53 mi2.42 mi2630+2332511+2182511+2181762(Top 6%)1674(Top 10%)1674(Top 30%)
30K18.64 mi3.11 mi2591+392475+362475+362697(Top 9%)2551(Top 16%)2551(Top 45%)
20M20.00 mi1.36 mi2678-872552-772552-774249(Top 15%)3872(Top 24%)3872(Top 69%)
21M21.00 mi1.00 mi2893-2152750-1982750-1986936(Top 24%)5626(Top 35%)5626(Top 100%)
35K21.75 mi0.75 mi2966-732809-592809-596512(Top 23%)5378(Top 33%)5378(Top 95%)
23M23.00 mi1.25 mi3090-1242922-1132922-1136172(Top 22%)5065(Top 31%)5065(Top 90%)
24M24.00 mi1.00 mi3233-1433049-1273049-1277198(Top 25%)5631(Top 35%)5631(Top 100%)
40K24.85 mi0.85 mi3367-1343165-1163165-1167779(Top 27%)5854(Top 36%)5854(Top 104%)
25.2M25.20 mi0.35 mi3408-413197-323197-327311(Top 26%)5476(Top 34%)5476(Top 97%)
Finish26.22 mi1.02 mi3898-4903607-4103607-41016520(Top 58%)10149(Top 63%)10149(Top 180%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2378

Males

2268

M18-39

2268

5K→10K

3.1 - 6.2 mi

Top 9%
×5stories
+79ft-138ft

Overall

2645

Males

2522

M18-39

2522

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2378

Males

2268

M18-39

2268

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4421

Males

4125

M18-39

4125

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1775

Males

1691

M18-39

1691

Half→25K

13.1 - 15.5 mi

Top 6%
×4stories
+66ft-88ft

Overall

1762

Males

1674

M18-39

1674

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2697

Males

2551

M18-39

2551

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

4249

Males

3872

M18-39

3872

20M→21M

20.0 - 21.0 mi

Top 24%
×8stories
+106ft-24ft

Overall

6936

Males

5626

M18-39

5626

21M→35K

21.0 - 21.8 mi

Top 23%
×7stories
+17ft-86ft

Overall

6512

Males

5378

M18-39

5378

35K→23M

21.8 - 23.0 mi

Top 22%
×5stories
+23ft-63ft

Overall

6172

Males

5065

M18-39

5065

23M→24M

23.0 - 24.0 mi

Top 25%
×6stories
+12ft-82ft

Overall

7198

Males

5631

M18-39

5631

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7779

Males

5854

M18-39

5854

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7311

Males

5476

M18-39

5476

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2stories
+22ft-21ft

Overall

16520

Males

10149

M18-39

10149

Passing Analysis

Category:
Athletes Passed
783
Passed By
2189
Net Change
-1406
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2492
5K → 10K82159-77#2492#2569
10K → 15K12949+80#2569#2489
15K → 20K11471-460#2489#2949
20K → Half860+86#2949#2863
Half → 25K2363+233#2863#2630
25K → 30K10970+39#2630#2591
30K → 20M30117-87#2591#2678
20M → 21M12227-215#2678#2893
21M → 35K1891-73#2893#2966
35K → 23M28152-124#2966#3090
23M → 24M14157-143#3090#3233
24M → 40K14148-134#3233#3367
40K → 25.2M1152-41#3367#3408
25.2M → Finish3493-490#3408#3898
TOTALS7832189-1406
📊

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