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BOSTON MARATHON 2025

Brian Lotempio

Bib: 4307•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
26:52
Rank: #20729
Start → 5K
26:52 | 8:39/mi
10K· 6.21 mi
52:37
Rank: #19632 (+1097)
5K → 10K
25:45 | 8:17/mi
15K· 9.32 mi
1:31:17
Rank: #24804 (-5172)
10K → 15K
38:40 | 12:27/mi
20K· 12.43 mi
2:15:25
Rank: #26632 (-1828)
15K → 20K
44:08 | 14:12/mi
Half· 13.11 mi
2:19:50
Rank: #26259 (+373)
20K → Half
4:25 | 6:28/mi
25K· 15.53 mi
2:36:14
Rank: #24838 (+1421)
Half → 25K
16:24 | 6:46/mi
30K· 18.64 mi
2:59:26
Rank: #23174 (+1664)
25K → 30K
23:12 | 7:28/mi
20M
3:09:24
Rank: #22465 (+709)
30K → 20M
9:58 | 7:20/mi
21M
3:20:57
Rank: #22472 (-7)
20M → 21M
11:33 | 11:33/mi
35K· 21.75 mi
3:26:08
Rank: #22099 (+373)
21M → 35K
5:11 | 6:56/mi
23M
3:35:12
Rank: #21452 (+647)
35K → 23M
9:04 | 7:14/mi
24M
3:42:37
Rank: #21023 (+429)
23M → 24M
7:25 | 7:25/mi
40K· 24.85 mi
3:48:40
Rank: #20622 (+401)
24M → 40K
6:03 | 7:05/mi
25.2M
3:51:19
Rank: #20457 (+165)
40K → 25.2M
2:39 | 7:41/mi
Finish· 26.22 mi
3:58:15
Rank: #19995 (+462)
25.2M → Finish
6:56 | 6:48/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time2:19:50
Pace10:40 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:38:25
Pace7:30 /mi
📊Negative Split: 29.6% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:0326:528:3926:52
8:39
-
10K
6.21 mi12:15:4852:378:2825:45
8:17
-0:22
15K
9.32 mi12:54:281:31:179:4838:40
12:27
+4:10
20K
12.43 mi13:38:362:15:2510:5444:08
14:12
+1:45
Half
13.11 mi13:43:012:19:5010:404:25
6:28
-7:44
25K
15.53 mi13:59:252:36:1410:0316:24
6:46
+0:18
30K
18.64 mi14:22:372:59:269:3823:12
7:28
+0:42
20M
20.00 mi14:32:353:09:249:289:58
7:20
-0:08
21M
21.00 mi14:44:083:20:579:3411:33
11:33
+4:13
35K
21.75 mi14:49:193:26:089:295:11
6:56
-4:37
23M
23.00 mi14:58:233:35:129:219:04
7:14
+0:18
24M
24.00 mi15:05:483:42:379:177:25
7:25
+0:11
40K
24.85 mi15:11:513:48:409:126:03
7:05
-0:20
25.2M
25.20 mi15:14:303:51:199:112:39
7:41
+0:36
Finish
26.22 mi15:21:263:58:159:066:56
6:48
-0:53

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

6:28 /mi

Average Pace

9:06 /mi

Slowest Pace

14:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

1:57:02

49% of race

Time at Slower Pace

2:01:13

51% of race

Average Pace: 9:05 /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 mi11:50:0326:528:3926:52
8:39
#20729
10K
6.21 mi12:15:4852:378:2825:45
8:17
#19632
15K
9.32 mi12:54:281:31:179:4838:40
12:27
#24804
20K
12.43 mi13:38:362:15:2510:5444:08
14:12
#26632
Half
13.11 mi13:43:012:19:5010:404:25
6:28
#26259
25K
15.53 mi13:59:252:36:1410:0316:24
6:46
#24838
30K
18.64 mi14:22:372:59:269:3823:12
7:28
#23174
20M
20.00 mi14:32:353:09:249:289:58
7:20
#22465
21M
21.00 mi14:44:083:20:579:3411:33
11:33
#22472
35K
21.75 mi14:49:193:26:089:295:11
6:56
#22099
23M
23.00 mi14:58:233:35:129:219:04
7:14
#21452
24M
24.00 mi15:05:483:42:379:177:25
7:25
#21023
40K
24.85 mi15:11:513:48:409:126:03
7:05
#20622
25.2M
25.20 mi15:14:303:51:199:112:39
7:41
#20457
Finish
26.22 mi15:21:263:58:159:066:56
6:48
#19995
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi20729127411274127896(Top 98%)15913(Top 99%)15913(Top 282%)
10K6.21 mi3.10 mi19632+109712317+42412317+42418462(Top 65%)11834(Top 73%)11834(Top 210%)
15K9.32 mi3.11 mi24804-517214623-230614623-230627896(Top 98%)15913(Top 99%)15913(Top 282%)
20K12.43 mi3.11 mi26632-182815427-80415427-80428287(Top 100%)16044(Top 100%)16044(Top 284%)
Half13.11 mi0.68 mi26259+37315269+15815269+1583566(Top 13%)3382(Top 21%)3382(Top 60%)
25K15.53 mi2.42 mi24838+142114606+66314606+6634614(Top 16%)4259(Top 26%)4259(Top 75%)
30K18.64 mi3.11 mi23174+166413830+77613830+7767524(Top 26%)6296(Top 39%)6296(Top 112%)
20M20.00 mi1.36 mi22465+70913495+33513495+3356010(Top 21%)5212(Top 32%)5212(Top 92%)
21M21.00 mi1.00 mi22472-713480+1513480+1522698(Top 80%)13293(Top 83%)13293(Top 236%)
35K21.75 mi0.75 mi22099+37313308+17213308+1724943(Top 17%)4355(Top 27%)4355(Top 77%)
23M23.00 mi1.25 mi21452+64712994+31412994+3145139(Top 18%)4423(Top 27%)4423(Top 78%)
24M24.00 mi1.00 mi21023+42912766+22812766+2287152(Top 25%)5627(Top 35%)5627(Top 100%)
40K24.85 mi0.85 mi20622+40112572+19412572+1944363(Top 15%)3761(Top 23%)3761(Top 67%)
25.2M25.20 mi0.35 mi20457+16512493+7912493+794309(Top 15%)3665(Top 23%)3665(Top 65%)
Finish26.22 mi1.02 mi19995+46212264+22912264+2294536(Top 16%)3828(Top 24%)3828(Top 68%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 98%
×21stories
+97ft-345ft

Overall

27896

Males

15913

M18-39

15913

5K→10K

3.1 - 6.2 mi

Top 65%
×5stories
+79ft-138ft

Overall

18462

Males

11834

M18-39

11834

10K→15K

6.2 - 9.3 mi

Top 98%
×3stories
+67ft-78ft

Overall

27896

Males

15913

M18-39

15913

15K→20K

9.3 - 12.4 mi

Top 100%
×5stories
+106ft-86ft

Overall

28287

Males

16044

M18-39

16044

20K→Half

12.4 - 13.1 mi

Top 13%
×2stories
+19ft-37ft

Overall

3566

Males

3382

M18-39

3382

Half→25K

13.1 - 15.5 mi

Top 16%
×4stories
+66ft-88ft

Overall

4614

Males

4259

M18-39

4259

25K→30K

15.5 - 18.6 mi

Top 26%
×9stories
+181ft-148ft

Overall

7524

Males

6296

M18-39

6296

30K→20M

18.6 - 20.0 mi

Top 21%
×5stories
+64ft-50ft

Overall

6010

Males

5212

M18-39

5212

20M→21M

20.0 - 21.0 mi

Top 80%
×8stories
+106ft-24ft

Overall

22698

Males

13293

M18-39

13293

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4943

Males

4355

M18-39

4355

35K→23M

21.8 - 23.0 mi

Top 18%
×5stories
+23ft-63ft

Overall

5139

Males

4423

M18-39

4423

23M→24M

23.0 - 24.0 mi

Top 25%
×6stories
+12ft-82ft

Overall

7152

Males

5627

M18-39

5627

24M→40K

24.0 - 24.9 mi

Top 15%
×1story
+6ft-20ft

Overall

4363

Males

3761

M18-39

3761

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

4309

Males

3665

M18-39

3665

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2stories
+22ft-21ft

Overall

4536

Males

3828

M18-39

3828

Passing Analysis

Category:
Athletes Passed
7855
Passed By
7121
Net Change
+734
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20729
5K → 10K113235+1097#20729#19632
10K → 15K55177-5172#19632#24804
15K → 20K31831-1828#24804#26632
20K → Half3730+373#26632#26259
Half → 25K14210+1421#26259#24838
25K → 30K16640+1664#24838#23174
30K → 20M7090+709#23174#22465
20M → 21M7178-7#22465#22472
21M → 35K3730+373#22472#22099
35K → 23M6470+647#22099#21452
23M → 24M4290+429#21452#21023
24M → 40K4010+401#21023#20622
40K → 25.2M1650+165#20622#20457
25.2M → Finish4620+462#20457#19995
TOTALS78557121+734
📊

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