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BOSTON MARATHON 2025

Isaac Threinen

Bib: 875•M

MN

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 5%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:31
Rank: #952
Start → 5K
18:31 | 5:58/mi
10K· 6.21 mi
36:39
Rank: #795 (+157)
5K → 10K
18:08 | 5:50/mi
15K· 9.32 mi
54:42
Rank: #709 (+86)
10K → 15K
18:03 | 5:49/mi
20K· 12.43 mi
1:12:42
Rank: #613 (+96)
15K → 20K
18:00 | 5:48/mi
Half· 13.11 mi
1:16:38
Rank: #606 (+7)
20K → Half
3:56 | 5:46/mi
25K· 15.53 mi
1:30:43
Rank: #566 (+40)
Half → 25K
14:05 | 5:49/mi
30K· 18.64 mi
1:48:42
Rank: #479 (+87)
25K → 30K
17:59 | 5:47/mi
20M
1:56:35
Rank: #448 (+31)
30K → 20M
7:53 | 5:48/mi
21M
2:02:33
Rank: #408 (+40)
20M → 21M
5:58 | 5:58/mi
35K· 21.75 mi
2:06:50
Rank: #401 (+7)
21M → 35K
4:17 | 5:44/mi
23M
2:14:12
Rank: #380 (+21)
35K → 23M
7:22 | 5:53/mi
24M
2:20:01
Rank: #363 (+17)
23M → 24M
5:49 | 5:49/mi
40K· 24.85 mi
2:25:03
Rank: #342 (+21)
24M → 40K
5:02 | 5:53/mi
25.2M
2:27:15
Rank: #335 (+7)
40K → 25.2M
2:12 | 6:23/mi
Finish· 26.22 mi
2:33:14
Rank: #330 (+5)
25.2M → Finish
5:59 | 5:52/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:16:38
Pace5:51 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:16:36
Pace5:51 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:4818:315:5818:31
5:58
-
10K
6.21 mi10:36:5636:395:5418:08
5:50
-0:08
15K
9.32 mi10:54:5954:425:5218:03
5:49
-0:01
20K
12.43 mi11:12:591:12:425:5118:00
5:48
-0:01
Half
13.11 mi11:16:551:16:385:513:56
5:46
-0:02
25K
15.53 mi11:31:001:30:435:5014:05
5:49
+0:03
30K
18.64 mi11:48:591:48:425:5017:59
5:47
-0:02
20M
20.00 mi11:56:521:56:355:507:53
5:48
+0:01
21M
21.00 mi12:02:502:02:335:505:58
5:58
+0:10
35K
21.75 mi12:07:072:06:505:504:17
5:44
-0:14
23M
23.00 mi12:14:292:14:125:507:22
5:53
+0:09
24M
24.00 mi12:20:182:20:015:505:49
5:49
-0:04
40K
24.85 mi12:25:202:25:035:505:02
5:53
+0:04
25.2M
25.20 mi12:27:322:27:155:512:12
6:23
+0:30
Finish
26.22 mi12:33:312:33:145:515:59
5:52
-0:31

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

5:44 /mi

Average Pace

5:51 /mi

Slowest Pace

6:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:31:02

99% of race

Time at Steady Pace

2:12

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 5:51 /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 mi10:18:4818:315:5818:31
5:58
#952
10K
6.21 mi10:36:5636:395:5418:08
5:50
#795
15K
9.32 mi10:54:5954:425:5218:03
5:49
#709
20K
12.43 mi11:12:591:12:425:5118:00
5:48
#613
Half
13.11 mi11:16:551:16:385:513:56
5:46
#606
25K
15.53 mi11:31:001:30:435:5014:05
5:49
#566
30K
18.64 mi11:48:591:48:425:5017:59
5:47
#479
20M
20.00 mi11:56:521:56:355:507:53
5:48
#448
21M
21.00 mi12:02:502:02:335:505:58
5:58
#408
35K
21.75 mi12:07:072:06:505:504:17
5:44
#401
23M
23.00 mi12:14:292:14:125:507:22
5:53
#380
24M
24.00 mi12:20:182:20:015:505:49
5:49
#363
40K
24.85 mi12:25:202:25:035:505:02
5:53
#342
25.2M
25.20 mi12:27:322:27:155:512:12
6:23
#335
Finish
26.22 mi12:33:312:33:145:515:59
5:52
#330
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi952894894534(Top 2%)497(Top 3%)497(Top 9%)
10K6.21 mi3.10 mi795+157743+151743+151672(Top 2%)627(Top 4%)627(Top 11%)
15K9.32 mi3.11 mi709+86661+82661+82534(Top 2%)497(Top 3%)497(Top 9%)
20K12.43 mi3.11 mi613+96567+94567+94434(Top 2%)403(Top 3%)403(Top 7%)
Half13.11 mi0.68 mi606+7560+7560+7499(Top 2%)467(Top 3%)467(Top 8%)
25K15.53 mi2.42 mi566+40521+39521+39421(Top 1%)390(Top 2%)390(Top 7%)
30K18.64 mi3.11 mi479+87443+78443+78238(Top 0.8%)216(Top 1%)216(Top 4%)
20M20.00 mi1.36 mi448+31413+30413+30192(Top 0.7%)175(Top 1%)175(Top 3%)
21M21.00 mi1.00 mi408+40375+38375+38112(Top 0.4%)106(Top 0.7%)106(Top 2%)
35K21.75 mi0.75 mi401+7370+5370+5288(Top 1%)267(Top 2%)267(Top 5%)
23M23.00 mi1.25 mi380+21352+18352+18223(Top 0.8%)207(Top 1%)207(Top 4%)
24M24.00 mi1.00 mi363+17336+16336+16291(Top 1%)269(Top 2%)269(Top 5%)
40K24.85 mi0.85 mi342+21315+21315+21261(Top 0.9%)240(Top 1%)240(Top 4%)
25.2M25.20 mi0.35 mi335+7308+7308+7293(Top 1%)271(Top 2%)271(Top 5%)
Finish26.22 mi1.02 mi330+5303+5303+5614(Top 2%)576(Top 4%)576(Top 10%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21stories
+97ft-345ft

Overall

534

Males

497

M18-39

497

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

672

Males

627

M18-39

627

10K→15K

6.2 - 9.3 mi

Top 2%
×3stories
+67ft-78ft

Overall

534

Males

497

M18-39

497

15K→20K

9.3 - 12.4 mi

Top 2%
×5stories
+106ft-86ft

Overall

434

Males

403

M18-39

403

20K→Half

12.4 - 13.1 mi

Top 2%
×2stories
+19ft-37ft

Overall

499

Males

467

M18-39

467

Half→25K

13.1 - 15.5 mi

Top 1%
×4stories
+66ft-88ft

Overall

421

Males

390

M18-39

390

25K→30K

15.5 - 18.6 mi

Top 0.8%
×9stories
+181ft-148ft

Overall

238

Males

216

M18-39

216

30K→20M

18.6 - 20.0 mi

Top 0.7%
×5stories
+64ft-50ft

Overall

192

Males

175

M18-39

175

20M→21M

20.0 - 21.0 mi

Top 0.4%
×8stories
+106ft-24ft

Overall

112

Males

106

M18-39

106

21M→35K

21.0 - 21.8 mi

Top 1%
×7stories
+17ft-86ft

Overall

288

Males

267

M18-39

267

35K→23M

21.8 - 23.0 mi

Top 0.8%
×5stories
+23ft-63ft

Overall

223

Males

207

M18-39

207

23M→24M

23.0 - 24.0 mi

Top 1%
×6stories
+12ft-82ft

Overall

291

Males

269

M18-39

269

24M→40K

24.0 - 24.9 mi

Top 0.9%
×1story
+6ft-20ft

Overall

261

Males

240

M18-39

240

40K→25.2M

24.9 - 25.2 mi

Top 1%
×1story
+13ft-16ft

Overall

293

Males

271

M18-39

271

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2stories
+22ft-21ft

Overall

614

Males

576

M18-39

576

Passing Analysis

Category:
Athletes Passed
638
Passed By
16
Net Change
+622
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#952
5K → 10K1603+157#952#795
10K → 15K871+86#795#709
15K → 20K960+96#709#613
20K → Half81+7#613#606
Half → 25K422+40#606#566
25K → 30K881+87#566#479
30K → 20M310+31#479#448
20M → 21M400+40#448#408
21M → 35K92+7#408#401
35K → 23M221+21#401#380
23M → 24M181+17#380#363
24M → 40K210+21#363#342
40K → 25.2M70+7#342#335
25.2M → Finish94+5#335#330
TOTALS63816+622
📊

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