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BOSTON MARATHON 2025

Dann Sullivan

Bib: 31577•M

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
29:47
Rank: #24518
Start → 5K
9:35/mi
29:47 split
10K· 6.21 mi
59:40
Rank: #24458 (+60)
5K → 10K
9:37/mi
29:53 split
15K· 9.32 mi
1:29:18
Rank: #24262 (+196)
10K → 15K
9:32/mi
29:38 split
20K· 12.43 mi
1:59:23
Rank: #24040 (+222)
15K → 20K
9:41/mi
30:05 split
Half· 13.11 mi
2:05:49
Rank: #23997 (+43)
20K → Half
9:26/mi
6:26 split
25K· 15.53 mi
2:29:13
Rank: #23703 (+294)
Half → 25K
9:39/mi
23:24 split
30K· 18.64 mi
3:00:31
Rank: #23357 (+346)
25K → 30K
10:04/mi
31:18 split
20M
3:15:03
Rank: #23284 (+73)
30K → 20M
10:42/mi
14:32 split
21M
3:26:19
Rank: #23215 (+69)
20M → 21M
11:16/mi
11:16 split
35K· 21.75 mi
3:33:45
Rank: #23156 (+59)
21M → 35K
9:56/mi
7:26 split
23M
3:47:24
Rank: #23160 (-4)
35K → 23M
10:54/mi
13:39 split
24M
3:58:09
Rank: #23174 (-14)
23M → 24M
10:45/mi
10:45 split
40K· 24.85 mi
4:07:10
Rank: #23110 (+64)
24M → 40K
10:33/mi
9:01 split
25.2M
4:11:25
Rank: #23124 (-14)
40K → 25.2M
12:19/mi
4:15 split
Finish· 26.22 mi
4:22:00
Rank: #23165 (-41)
25.2M → Finish
10:23/mi
10:35 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:05:49
Pace9:36 /mi
2nd Half
Distance13.11 mi
Time2:16:11
Pace10:23 /mi
📊Positive Split: 8.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:4829:479:3529:47
9:35
-
10K
6.21 mi12:24:4159:409:3629:53
9:37
+0:02
15K
9.32 mi12:54:191:29:189:3529:38
9:32
-0:05
20K
12.43 mi13:24:241:59:239:3630:05
9:41
+0:09
Half
13.11 mi13:30:502:05:499:366:26
9:26
-0:15
25K
15.53 mi13:54:142:29:139:3623:24
9:39
+0:13
30K
18.64 mi14:25:323:00:319:4131:18
10:04
+0:25
20M
20.00 mi14:40:043:15:039:4514:32
10:42
+0:38
21M
21.00 mi14:51:203:26:199:4911:16
11:16
+0:34
35K
21.75 mi14:58:463:33:459:507:26
9:56
-1:20
23M
23.00 mi15:12:253:47:249:5313:39
10:54
+0:58
24M
24.00 mi15:23:103:58:099:5510:45
10:45
-0:09
40K
24.85 mi15:32:114:07:109:579:01
10:33
-0:12
25.2M
25.20 mi15:36:264:11:259:594:15
12:19
+1:46
Finish
26.22 mi15:47:014:22:0010:0010:35
10:23
-1:56

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

9:26 /mi

Average Pace

10:00 /mi

Slowest Pace

12:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59:08

45% of race

Time at Steady Pace

1:19:24

30% of race

Time at Slower Pace

1:03:28

24% of race

Average Pace: 10:00 /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 mi11:54:4829:479:3529:47
9:35
#24518
10K
6.21 mi12:24:4159:409:3629:53
9:37
#24458
15K
9.32 mi12:54:191:29:189:3529:38
9:32
#24262
20K
12.43 mi13:24:241:59:239:3630:05
9:41
#24040
Half
13.11 mi13:30:502:05:499:366:26
9:26
#23997
25K
15.53 mi13:54:142:29:139:3623:24
9:39
#23703
30K
18.64 mi14:25:323:00:319:4131:18
10:04
#23357
20M
20.00 mi14:40:043:15:039:4514:32
10:42
#23284
21M
21.00 mi14:51:203:26:199:4911:16
11:16
#23215
35K
21.75 mi14:58:463:33:459:507:26
9:56
#23156
23M
23.00 mi15:12:253:47:249:5313:39
10:54
#23160
24M
24.00 mi15:23:103:58:099:5510:45
10:45
#23174
40K
24.85 mi15:32:114:07:109:579:01
10:33
#23110
25.2M
25.20 mi15:36:264:11:259:594:15
12:19
#23124
Finish
26.22 mi15:47:014:22:0010:0010:35
10:23
#23165
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi24518144881448823840(Top 84%)14209(Top 88%)14209(Top 252%)
10K6.21 mi3.10 mi24458+6014468+2014468+2024406(Top 86%)14425(Top 90%)14425(Top 256%)
15K9.32 mi3.11 mi24262+19614377+9114377+9123840(Top 84%)14209(Top 88%)14209(Top 252%)
20K12.43 mi3.11 mi24040+22214264+11314264+11323432(Top 82%)13989(Top 87%)13989(Top 248%)
Half13.11 mi0.68 mi23997+4314241+2314241+2323337(Top 82%)13937(Top 87%)13937(Top 247%)
25K15.53 mi2.42 mi23703+29414116+12514116+12522366(Top 79%)13452(Top 84%)13452(Top 238%)
30K18.64 mi3.11 mi23357+34613917+19913917+19921806(Top 77%)13078(Top 81%)13078(Top 232%)
20M20.00 mi1.36 mi23284+7313868+4913868+4922933(Top 81%)13488(Top 84%)13488(Top 239%)
21M21.00 mi1.00 mi23215+6913812+5613812+5622082(Top 78%)13015(Top 81%)13015(Top 231%)
35K21.75 mi0.75 mi23156+5913780+3213780+3221715(Top 76%)12779(Top 79%)12779(Top 226%)
23M23.00 mi1.25 mi23160-413742+3813742+3823001(Top 81%)13339(Top 83%)13339(Top 236%)
24M24.00 mi1.00 mi23174-1413728+1413728+1423443(Top 83%)13530(Top 84%)13530(Top 240%)
40K24.85 mi0.85 mi23110+6413682+4613682+4622037(Top 78%)12766(Top 79%)12766(Top 226%)
25.2M25.20 mi0.35 mi23124-1413685-313685-323846(Top 84%)13691(Top 85%)13691(Top 243%)
Finish26.22 mi1.02 mi23165-4113689-413689-423997(Top 84%)13765(Top 85%)13765(Top 244%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 84%
×21story building
+97ft-345ft

Overall

23840

Males

14209

M18-39

14209

5K→10K

3.1 - 6.2 mi

Top 86%
×5story building
+79ft-138ft

Overall

24406

Males

14425

M18-39

14425

10K→15K

6.2 - 9.3 mi

Top 84%
×3story building
+67ft-78ft

Overall

23840

Males

14209

M18-39

14209

15K→20K

9.3 - 12.4 mi

Top 82%
×5story building
+106ft-86ft

Overall

23432

Males

13989

M18-39

13989

20K→Half

12.4 - 13.1 mi

Top 82%
×2story building
+19ft-37ft

Overall

23337

Males

13937

M18-39

13937

Half→25K

13.1 - 15.5 mi

Top 79%
×4story building
+66ft-88ft

Overall

22366

Males

13452

M18-39

13452

25K→30K

15.5 - 18.6 mi

Top 77%
×9story building
+181ft-148ft

Overall

21806

Males

13078

M18-39

13078

30K→20M

18.6 - 20.0 mi

Top 81%
×5story building
+64ft-50ft

Overall

22933

Males

13488

M18-39

13488

20M→21M

20.0 - 21.0 mi

Top 78%
×8story building
+106ft-24ft

Overall

22082

Males

13015

M18-39

13015

21M→35K

21.0 - 21.8 mi

Top 76%
×7story building
+17ft-86ft

Overall

21715

Males

12779

M18-39

12779

35K→23M

21.8 - 23.0 mi

Top 81%
×5story building
+23ft-63ft

Overall

23001

Males

13339

M18-39

13339

23M→24M

23.0 - 24.0 mi

Top 83%
×6story building
+12ft-82ft

Overall

23443

Males

13530

M18-39

13530

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

22037

Males

12766

M18-39

12766

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

23846

Males

13691

M18-39

13691

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2story building
+22ft-21ft

Overall

23997

Males

13765

M18-39

13765

Passing Analysis

Category:
Athletes Passed
2007
Passed By
654
Net Change
+1353
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24518
5K → 10K237177+60#24518#24458
10K → 15K26367+196#24458#24262
15K → 20K25331+222#24262#24040
20K → Half5512+43#24040#23997
Half → 25K3028+294#23997#23703
25K → 30K38034+346#23703#23357
30K → 20M11239+73#23357#23284
20M → 21M9829+69#23284#23215
21M → 35K7314+59#23215#23156
35K → 23M7276-4#23156#23160
23M → 24M4660-14#23160#23174
24M → 40K7612+64#23174#23110
40K → 25.2M1327-14#23110#23124
25.2M → Finish2768-41#23124#23165
TOTALS2007654+1353
📊

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