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BOSTON MARATHON 2025

Brendan Thompson

Bib: 1402•M

IA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 9%
Gender (Male)
#0 / 16105
Top 16%
Division (M18-39)
#0 / 5642
Top 36%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:17
Rank: #4049
Start → 5K
20:17 | 6:32/mi
10K· 6.21 mi
38:35
Rank: #1927 (+2122)
5K → 10K
18:18 | 5:53/mi
15K· 9.32 mi
57:07
Rank: #1523 (+404)
10K → 15K
18:32 | 5:58/mi
20K· 12.43 mi
1:16:27
Rank: #1539 (-16)
15K → 20K
19:20 | 6:13/mi
Half· 13.11 mi
1:20:40
Rank: #1552 (-13)
20K → Half
4:13 | 6:11/mi
25K· 15.53 mi
1:36:13
Rank: #1661 (-109)
Half → 25K
15:33 | 6:25/mi
30K· 18.64 mi
1:58:00
Rank: #2096 (-435)
25K → 30K
21:47 | 7:01/mi
20M
2:07:45
Rank: #2253 (-157)
30K → 20M
9:45 | 7:10/mi
21M
2:15:23
Rank: #2365 (-112)
20M → 21M
7:38 | 7:38/mi
35K· 21.75 mi
2:20:30
Rank: #2412 (-47)
21M → 35K
5:07 | 6:50/mi
23M
2:29:24
Rank: #2497 (-85)
35K → 23M
8:54 | 7:06/mi
24M
2:36:24
Rank: #2555 (-58)
23M → 24M
7:00 | 7:00/mi
40K· 24.85 mi
2:42:35
Rank: #2607 (-52)
24M → 40K
6:11 | 7:14/mi
25.2M
2:45:16
Rank: #2637 (-30)
40K → 25.2M
2:41 | 7:47/mi
Finish· 26.22 mi
2:52:15
Rank: #2682 (-45)
25.2M → Finish
6:59 | 6:51/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:20:40
Pace6:09 /mi
2nd Half
Distance13.11 mi
Time1:31:35
Pace6:59 /mi
📊Positive Split: 13.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:3120:176:3220:17
6:32
-
10K
6.21 mi11:04:4938:356:1318:18
5:53
-0:39
15K
9.32 mi11:23:2157:076:0818:32
5:58
+0:05
20K
12.43 mi11:42:411:16:276:0919:20
6:13
+0:15
Half
13.11 mi11:46:541:20:406:094:13
6:11
-0:02
25K
15.53 mi12:02:271:36:136:1215:33
6:25
+0:14
30K
18.64 mi12:24:141:58:006:2021:47
7:01
+0:36
20M
20.00 mi12:33:592:07:456:239:45
7:10
+0:09
21M
21.00 mi12:41:372:15:236:277:38
7:38
+0:28
35K
21.75 mi12:46:442:20:306:285:07
6:50
-0:48
23M
23.00 mi12:55:382:29:246:308:54
7:06
+0:16
24M
24.00 mi13:02:382:36:246:317:00
7:00
-0:06
40K
24.85 mi13:08:492:42:356:326:11
7:14
+0:14
25.2M
25.20 mi13:11:302:45:166:332:41
7:47
+0:33
Finish
26.22 mi13:18:292:52:156:346:59
6:51
-0:56

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

5:53 /mi

Average Pace

6:34 /mi

Slowest Pace

7:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:13

56% of race

Time at Steady Pace

49:47

29% of race

Time at Slower Pace

26:15

15% of race

Average Pace: 6:34 /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 mi10:46:3120:176:3220:17
6:32
#4049
10K
6.21 mi11:04:4938:356:1318:18
5:53
#1927
15K
9.32 mi11:23:2157:076:0818:32
5:58
#1523
20K
12.43 mi11:42:411:16:276:0919:20
6:13
#1539
Half
13.11 mi11:46:541:20:406:094:13
6:11
#1552
25K
15.53 mi12:02:271:36:136:1215:33
6:25
#1661
30K
18.64 mi12:24:141:58:006:2021:47
7:01
#2096
20M
20.00 mi12:33:592:07:456:239:45
7:10
#2253
21M
21.00 mi12:41:372:15:236:277:38
7:38
#2365
35K
21.75 mi12:46:442:20:306:285:07
6:50
#2412
23M
23.00 mi12:55:382:29:246:308:54
7:06
#2497
24M
24.00 mi13:02:382:36:246:317:00
7:00
#2555
40K
24.85 mi13:08:492:42:356:326:11
7:14
#2607
25.2M
25.20 mi13:11:302:45:166:332:41
7:47
#2637
Finish
26.22 mi13:18:292:52:156:346:59
6:51
#2682
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi404938193819933(Top 3%)880(Top 5%)880(Top 16%)
10K6.21 mi3.10 mi1927+21221835+19841835+1984803(Top 3%)752(Top 5%)752(Top 13%)
15K9.32 mi3.11 mi1523+4041447+3881447+388933(Top 3%)880(Top 5%)880(Top 16%)
20K12.43 mi3.11 mi1539-161461-141461-141678(Top 6%)1596(Top 10%)1596(Top 28%)
Half13.11 mi0.68 mi1552-131474-131474-131934(Top 7%)1847(Top 11%)1847(Top 33%)
25K15.53 mi2.42 mi1661-1091578-1041578-1042457(Top 9%)2337(Top 15%)2337(Top 41%)
30K18.64 mi3.11 mi2096-4351999-4211999-4214757(Top 17%)4335(Top 27%)4335(Top 77%)
20M20.00 mi1.36 mi2253-1572149-1502149-1505064(Top 18%)4531(Top 28%)4531(Top 80%)
21M21.00 mi1.00 mi2365-1122253-1042253-1045288(Top 19%)4587(Top 28%)4587(Top 81%)
35K21.75 mi0.75 mi2412-472301-482301-484357(Top 15%)3886(Top 24%)3886(Top 69%)
23M23.00 mi1.25 mi2497-852376-752376-754379(Top 15%)3867(Top 24%)3867(Top 69%)
24M24.00 mi1.00 mi2555-582425-492425-494628(Top 16%)3999(Top 25%)3999(Top 71%)
40K24.85 mi0.85 mi2607-522472-472472-475212(Top 18%)4353(Top 27%)4353(Top 77%)
25.2M25.20 mi0.35 mi2637-302498-262498-264763(Top 17%)3961(Top 25%)3961(Top 70%)
Finish26.22 mi1.02 mi2682-452538-402538-404803(Top 17%)3987(Top 25%)3987(Top 71%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21stories
+97ft-345ft

Overall

933

Males

880

M18-39

880

5K→10K

3.1 - 6.2 mi

Top 3%
×5stories
+79ft-138ft

Overall

803

Males

752

M18-39

752

10K→15K

6.2 - 9.3 mi

Top 3%
×3stories
+67ft-78ft

Overall

933

Males

880

M18-39

880

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1678

Males

1596

M18-39

1596

20K→Half

12.4 - 13.1 mi

Top 7%
×2stories
+19ft-37ft

Overall

1934

Males

1847

M18-39

1847

Half→25K

13.1 - 15.5 mi

Top 9%
×4stories
+66ft-88ft

Overall

2457

Males

2337

M18-39

2337

25K→30K

15.5 - 18.6 mi

Top 17%
×9stories
+181ft-148ft

Overall

4757

Males

4335

M18-39

4335

30K→20M

18.6 - 20.0 mi

Top 18%
×5stories
+64ft-50ft

Overall

5064

Males

4531

M18-39

4531

20M→21M

20.0 - 21.0 mi

Top 19%
×8stories
+106ft-24ft

Overall

5288

Males

4587

M18-39

4587

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

4357

Males

3886

M18-39

3886

35K→23M

21.8 - 23.0 mi

Top 15%
×5stories
+23ft-63ft

Overall

4379

Males

3867

M18-39

3867

23M→24M

23.0 - 24.0 mi

Top 16%
×6stories
+12ft-82ft

Overall

4628

Males

3999

M18-39

3999

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

5212

Males

4353

M18-39

4353

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4763

Males

3961

M18-39

3961

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2stories
+22ft-21ft

Overall

4803

Males

3987

M18-39

3987

Passing Analysis

Category:
Athletes Passed
2765
Passed By
1398
Net Change
+1367
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4049
5K → 10K21220+2122#4049#1927
10K → 15K4040+404#1927#1523
15K → 20K5268-16#1523#1539
20K → Half1023-13#1539#1552
Half → 25K17126-109#1552#1661
25K → 30K11446-435#1661#2096
30K → 20M15172-157#2096#2253
20M → 21M18130-112#2253#2365
21M → 35K1562-47#2365#2412
35K → 23M26111-85#2412#2497
23M → 24M2987-58#2497#2555
24M → 40K1971-52#2555#2607
40K → 25.2M1040-30#2607#2637
25.2M → Finish1762-45#2637#2682
TOTALS27651398+1367
📊

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