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BOSTON MARATHON 2025

Brent Kann

Bib: 608•M

WI

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 1%
Gender (Male)
#0 / 16105
Top 2%
Division (M18-39)
#0 / 5642
Top 6%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:14
Rank: #733
Start → 5K
18:14 | 5:52/mi
10K· 6.21 mi
36:07
Rank: #624 (+109)
5K → 10K
17:53 | 5:45/mi
15K· 9.32 mi
54:27
Rank: #638 (-14)
10K → 15K
18:20 | 5:54/mi
20K· 12.43 mi
1:12:46
Rank: #623 (+15)
15K → 20K
18:19 | 5:54/mi
Half· 13.11 mi
1:16:47
Rank: #630 (-7)
20K → Half
4:01 | 5:53/mi
25K· 15.53 mi
1:31:06
Rank: #610 (+20)
Half → 25K
14:19 | 5:54/mi
30K· 18.64 mi
1:49:36
Rank: #551 (+59)
25K → 30K
18:30 | 5:57/mi
20M
1:57:45
Rank: #535 (+16)
30K → 20M
8:09 | 6:00/mi
21M
2:03:57
Rank: #503 (+32)
20M → 21M
6:12 | 6:12/mi
35K· 21.75 mi
2:08:16
Rank: #492 (+11)
21M → 35K
4:19 | 5:46/mi
23M
2:15:42
Rank: #460 (+32)
35K → 23M
7:26 | 5:56/mi
24M
2:21:27
Rank: #436 (+24)
23M → 24M
5:45 | 5:45/mi
40K· 24.85 mi
2:26:26
Rank: #419 (+17)
24M → 40K
4:59 | 5:50/mi
25.2M
2:28:38
Rank: #414 (+5)
40K → 25.2M
2:12 | 6:23/mi
Finish· 26.22 mi
2:34:24
Rank: #397 (+17)
25.2M → Finish
5:46 | 5:40/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:16:47
Pace5:51 /mi
2nd Half
Distance13.11 mi
Time1:17:37
Pace5:55 /mi
📊Positive Split: 1.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:3118:145:5218:14
5:52
-
10K
6.21 mi10:36:2436:075:4917:53
5:45
-0:07
15K
9.32 mi10:54:4454:275:5118:20
5:54
+0:09
20K
12.43 mi11:13:031:12:465:5118:19
5:54
0:00
Half
13.11 mi11:17:041:16:475:514:01
5:53
-0:01
25K
15.53 mi11:31:231:31:065:5214:19
5:54
+0:01
30K
18.64 mi11:49:531:49:365:5318:30
5:57
+0:03
20M
20.00 mi11:58:021:57:455:538:09
6:00
+0:03
21M
21.00 mi12:04:142:03:575:546:12
6:12
+0:12
35K
21.75 mi12:08:332:08:165:544:19
5:46
-0:26
23M
23.00 mi12:15:592:15:425:547:26
5:56
+0:10
24M
24.00 mi12:21:442:21:275:545:45
5:45
-0:11
40K
24.85 mi12:26:432:26:265:534:59
5:50
+0:05
25.2M
25.20 mi12:28:552:28:385:542:12
6:23
+0:33
Finish
26.22 mi12:34:412:34:245:545:46
5:40
-0:43

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

5:40 /mi

Average Pace

5:54 /mi

Slowest Pace

6:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:32:12

99% of race

Time at Steady Pace

2:12

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 5:53 /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 mi10:18:3118:145:5218:14
5:52
#733
10K
6.21 mi10:36:2436:075:4917:53
5:45
#624
15K
9.32 mi10:54:4454:275:5118:20
5:54
#638
20K
12.43 mi11:13:031:12:465:5118:19
5:54
#623
Half
13.11 mi11:17:041:16:475:514:01
5:53
#630
25K
15.53 mi11:31:231:31:065:5214:19
5:54
#610
30K
18.64 mi11:49:531:49:365:5318:30
5:57
#551
20M
20.00 mi11:58:021:57:455:538:09
6:00
#535
21M
21.00 mi12:04:142:03:575:546:12
6:12
#503
35K
21.75 mi12:08:332:08:165:544:19
5:46
#492
23M
23.00 mi12:15:592:15:425:547:26
5:56
#460
24M
24.00 mi12:21:442:21:275:545:45
5:45
#436
40K
24.85 mi12:26:432:26:265:534:59
5:50
#419
25.2M
25.20 mi12:28:552:28:385:542:12
6:23
#414
Finish
26.22 mi12:34:412:34:245:545:46
5:40
#397
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi733682682751(Top 3%)702(Top 4%)702(Top 12%)
10K6.21 mi3.10 mi624+109578+104578+104536(Top 2%)498(Top 3%)498(Top 9%)
15K9.32 mi3.11 mi638-14593-15593-15751(Top 3%)702(Top 4%)702(Top 12%)
20K12.43 mi3.11 mi623+15576+17576+17604(Top 2%)557(Top 3%)557(Top 10%)
Half13.11 mi0.68 mi630-7583-7583-7771(Top 3%)725(Top 5%)725(Top 13%)
25K15.53 mi2.42 mi610+20564+19564+19577(Top 2%)532(Top 3%)532(Top 9%)
30K18.64 mi3.11 mi551+59506+58506+58437(Top 2%)405(Top 3%)405(Top 7%)
20M20.00 mi1.36 mi535+16490+16490+16378(Top 1%)353(Top 2%)353(Top 6%)
21M21.00 mi1.00 mi503+32462+28462+28264(Top 0.9%)247(Top 2%)247(Top 4%)
35K21.75 mi0.75 mi492+11451+11451+11341(Top 1%)319(Top 2%)319(Top 6%)
23M23.00 mi1.25 mi460+32422+29422+29274(Top 1.0%)255(Top 2%)255(Top 5%)
24M24.00 mi1.00 mi436+24402+20402+20234(Top 0.8%)214(Top 1%)214(Top 4%)
40K24.85 mi0.85 mi419+17387+15387+15221(Top 0.8%)201(Top 1%)201(Top 4%)
25.2M25.20 mi0.35 mi414+5382+5382+5299(Top 1%)277(Top 2%)277(Top 5%)
Finish26.22 mi1.02 mi397+17366+16366+16305(Top 1%)285(Top 2%)285(Top 5%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21stories
+97ft-345ft

Overall

751

Males

702

M18-39

702

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

536

Males

498

M18-39

498

10K→15K

6.2 - 9.3 mi

Top 3%
×3stories
+67ft-78ft

Overall

751

Males

702

M18-39

702

15K→20K

9.3 - 12.4 mi

Top 2%
×5stories
+106ft-86ft

Overall

604

Males

557

M18-39

557

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

771

Males

725

M18-39

725

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

577

Males

532

M18-39

532

25K→30K

15.5 - 18.6 mi

Top 2%
×9stories
+181ft-148ft

Overall

437

Males

405

M18-39

405

30K→20M

18.6 - 20.0 mi

Top 1%
×5stories
+64ft-50ft

Overall

378

Males

353

M18-39

353

20M→21M

20.0 - 21.0 mi

Top 0.9%
×8stories
+106ft-24ft

Overall

264

Males

247

M18-39

247

21M→35K

21.0 - 21.8 mi

Top 1%
×7stories
+17ft-86ft

Overall

341

Males

319

M18-39

319

35K→23M

21.8 - 23.0 mi

Top 1.0%
×5stories
+23ft-63ft

Overall

274

Males

255

M18-39

255

23M→24M

23.0 - 24.0 mi

Top 0.8%
×6stories
+12ft-82ft

Overall

234

Males

214

M18-39

214

24M→40K

24.0 - 24.9 mi

Top 0.8%
×1story
+6ft-20ft

Overall

221

Males

201

M18-39

201

40K→25.2M

24.9 - 25.2 mi

Top 1%
×1story
+13ft-16ft

Overall

299

Males

277

M18-39

277

25.2M→Finish

25.2 - 26.2 mi

Top 1%
×2stories
+22ft-21ft

Overall

305

Males

285

M18-39

285

Passing Analysis

Category:
Athletes Passed
422
Passed By
86
Net Change
+336
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#733
5K → 10K1112+109#733#624
10K → 15K1327-14#624#638
15K → 20K3722+15#638#623
20K → Half07-7#623#630
Half → 25K288+20#630#610
25K → 30K656+59#610#551
30K → 20M193+16#551#535
20M → 21M331+32#535#503
21M → 35K143+11#503#492
35K → 23M331+32#492#460
23M → 24M240+24#460#436
24M → 40K203+17#436#419
40K → 25.2M61+5#419#414
25.2M → Finish192+17#414#397
TOTALS42286+336
📊

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