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BOSTON MARATHON 2025

Alex Prusa

Bib: 3550•M

NE

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 18%
Gender (Male)
#0 / 16105
Top 29%
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
21:35
Rank: #7393
Start → 5K
21:35 | 6:57/mi
10K· 6.21 mi
43:20
Rank: #7675 (-282)
5K → 10K
21:45 | 7:00/mi
15K· 9.32 mi
1:05:05
Rank: #7638 (+37)
10K → 15K
21:45 | 7:00/mi
20K· 12.43 mi
1:26:37
Rank: #7285 (+353)
15K → 20K
21:32 | 6:56/mi
Half· 13.11 mi
1:31:18
Rank: #7254 (+31)
20K → Half
4:41 | 6:52/mi
25K· 15.53 mi
1:48:09
Rank: #7010 (+244)
Half → 25K
16:51 | 6:57/mi
30K· 18.64 mi
2:10:09
Rank: #6544 (+466)
25K → 30K
22:00 | 7:05/mi
20M
2:19:43
Rank: #6291 (+253)
30K → 20M
9:34 | 7:02/mi
21M
2:27:00
Rank: #6094 (+197)
20M → 21M
7:17 | 7:17/mi
35K· 21.75 mi
2:32:03
Rank: #5973 (+121)
21M → 35K
5:03 | 6:45/mi
23M
2:40:47
Rank: #5744 (+229)
35K → 23M
8:44 | 6:59/mi
24M
2:47:29
Rank: #5552 (+192)
23M → 24M
6:42 | 6:42/mi
40K· 24.85 mi
2:53:06
Rank: #5378 (+174)
24M → 40K
5:37 | 6:34/mi
25.2M
2:55:38
Rank: #5301 (+77)
40K → 25.2M
2:32 | 7:21/mi
Finish· 26.22 mi
3:02:11
Rank: #5155 (+146)
25.2M → Finish
6:33 | 6:26/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:31:18
Pace6:58 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:30:53
Pace6:56 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:2121:356:5721:35
6:57
-
10K
6.21 mi10:46:0643:206:5821:45
7:00
+0:03
15K
9.32 mi11:07:511:05:056:5921:45
7:00
0:00
20K
12.43 mi11:29:231:26:376:5821:32
6:56
-0:04
Half
13.11 mi11:34:041:31:186:584:41
6:52
-0:04
25K
15.53 mi11:50:551:48:096:5816:51
6:57
+0:05
30K
18.64 mi12:12:552:10:096:5922:00
7:05
+0:08
20M
20.00 mi12:22:292:19:436:599:34
7:02
-0:03
21M
21.00 mi12:29:462:27:007:007:17
7:17
+0:15
35K
21.75 mi12:34:492:32:036:595:03
6:45
-0:32
23M
23.00 mi12:43:332:40:476:598:44
6:59
+0:14
24M
24.00 mi12:50:152:47:296:596:42
6:42
-0:17
40K
24.85 mi12:55:522:53:066:585:37
6:34
-0:08
25.2M
25.20 mi12:58:242:55:386:582:32
7:21
+0:47
Finish
26.22 mi13:04:573:02:116:576:33
6:26
-0:55

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

6:26 /mi

Average Pace

6:57 /mi

Slowest Pace

7:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:30:22

83% of race

Time at Steady Pace

31:49

17% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:57 /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 mi10:24:2121:356:5721:35
6:57
#7393
10K
6.21 mi10:46:0643:206:5821:45
7:00
#7675
15K
9.32 mi11:07:511:05:056:5921:45
7:00
#7638
20K
12.43 mi11:29:231:26:376:5821:32
6:56
#7285
Half
13.11 mi11:34:041:31:186:584:41
6:52
#7254
25K
15.53 mi11:50:551:48:096:5816:51
6:57
#7010
30K
18.64 mi12:12:552:10:096:5922:00
7:05
#6544
20M
20.00 mi12:22:292:19:436:599:34
7:02
#6291
21M
21.00 mi12:29:462:27:007:007:17
7:17
#6094
35K
21.75 mi12:34:492:32:036:595:03
6:45
#5973
23M
23.00 mi12:43:332:40:476:598:44
6:59
#5744
24M
24.00 mi12:50:152:47:296:596:42
6:42
#5552
40K
24.85 mi12:55:522:53:066:585:37
6:34
#5378
25.2M
25.20 mi12:58:242:55:386:582:32
7:21
#5301
Finish
26.22 mi13:04:573:02:116:576:33
6:26
#5155
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi7393658765877624(Top 27%)6695(Top 42%)6695(Top 119%)
10K6.21 mi3.10 mi7675-2826774-1876774-1877906(Top 28%)6913(Top 43%)6913(Top 123%)
15K9.32 mi3.11 mi7638+376733+416733+417624(Top 27%)6695(Top 42%)6695(Top 119%)
20K12.43 mi3.11 mi7285+3536477+2566477+2566408(Top 23%)5748(Top 36%)5748(Top 102%)
Half13.11 mi0.68 mi7254+316454+236454+236580(Top 23%)5876(Top 36%)5876(Top 104%)
25K15.53 mi2.42 mi7010+2446263+1916263+1915964(Top 21%)5368(Top 33%)5368(Top 95%)
30K18.64 mi3.11 mi6544+4665870+3935870+3935201(Top 18%)4702(Top 29%)4702(Top 83%)
20M20.00 mi1.36 mi6291+2535653+2175653+2174335(Top 15%)3950(Top 25%)3950(Top 70%)
21M21.00 mi1.00 mi6094+1975476+1775476+1773547(Top 12%)3246(Top 20%)3246(Top 58%)
35K21.75 mi0.75 mi5973+1215374+1025374+1023805(Top 13%)3427(Top 21%)3427(Top 61%)
23M23.00 mi1.25 mi5744+2295183+1915183+1913614(Top 13%)3270(Top 20%)3270(Top 58%)
24M24.00 mi1.00 mi5552+1925020+1635020+1632985(Top 11%)2709(Top 17%)2709(Top 48%)
40K24.85 mi0.85 mi5378+1744874+1464874+1461865(Top 7%)1719(Top 11%)1719(Top 30%)
25.2M25.20 mi0.35 mi5301+774806+684806+682749(Top 10%)2451(Top 15%)2451(Top 43%)
Finish26.22 mi1.02 mi5155+1464677+1294677+1292453(Top 9%)2233(Top 14%)2233(Top 40%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21stories
+97ft-345ft

Overall

7624

Males

6695

M18-39

6695

5K→10K

3.1 - 6.2 mi

Top 28%
×5stories
+79ft-138ft

Overall

7906

Males

6913

M18-39

6913

10K→15K

6.2 - 9.3 mi

Top 27%
×3stories
+67ft-78ft

Overall

7624

Males

6695

M18-39

6695

15K→20K

9.3 - 12.4 mi

Top 23%
×5stories
+106ft-86ft

Overall

6408

Males

5748

M18-39

5748

20K→Half

12.4 - 13.1 mi

Top 23%
×2stories
+19ft-37ft

Overall

6580

Males

5876

M18-39

5876

Half→25K

13.1 - 15.5 mi

Top 21%
×4stories
+66ft-88ft

Overall

5964

Males

5368

M18-39

5368

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

5201

Males

4702

M18-39

4702

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

4335

Males

3950

M18-39

3950

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3547

Males

3246

M18-39

3246

21M→35K

21.0 - 21.8 mi

Top 13%
×7stories
+17ft-86ft

Overall

3805

Males

3427

M18-39

3427

35K→23M

21.8 - 23.0 mi

Top 13%
×5stories
+23ft-63ft

Overall

3614

Males

3270

M18-39

3270

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

2985

Males

2709

M18-39

2709

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

1865

Males

1719

M18-39

1719

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2749

Males

2451

M18-39

2451

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2stories
+22ft-21ft

Overall

2453

Males

2233

M18-39

2233

Passing Analysis

Category:
Athletes Passed
2801
Passed By
563
Net Change
+2238
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7393
5K → 10K106388-282#7393#7675
10K → 15K151114+37#7675#7638
15K → 20K3607+353#7638#7285
20K → Half4211+31#7285#7254
Half → 25K25410+244#7254#7010
25K → 30K48216+466#7010#6544
30K → 20M2563+253#6544#6291
20M → 21M2003+197#6291#6094
21M → 35K1243+121#6094#5973
35K → 23M2312+229#5973#5744
23M → 24M1953+192#5744#5552
24M → 40K1740+174#5552#5378
40K → 25.2M781+77#5378#5301
25.2M → Finish1482+146#5301#5155
TOTALS2801563+2238
📊

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