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BOSTON MARATHON 2025

Alex Check

Bib: 1942•M

MN

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 9%
Gender (Male)
#0 / 16105
Top 14%
Division (M18-39)
#0 / 5642
Top 33%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:22
Rank: #4248
Start → 5K
20:22 | 6:33/mi
10K· 6.21 mi
40:40
Rank: #4107 (+141)
5K → 10K
20:18 | 6:32/mi
15K· 9.32 mi
1:00:46
Rank: #3829 (+278)
10K → 15K
20:06 | 6:28/mi
20K· 12.43 mi
1:20:53
Rank: #3578 (+251)
15K → 20K
20:07 | 6:28/mi
Half· 13.11 mi
1:25:13
Rank: #3511 (+67)
20K → Half
4:20 | 6:21/mi
25K· 15.53 mi
1:40:41
Rank: #3263 (+248)
Half → 25K
15:28 | 6:23/mi
30K· 18.64 mi
2:00:37
Rank: #2850 (+413)
25K → 30K
19:56 | 6:25/mi
20M
2:09:22
Rank: #2680 (+170)
30K → 20M
8:45 | 6:26/mi
21M
2:16:11
Rank: #2580 (+100)
20M → 21M
6:49 | 6:49/mi
35K· 21.75 mi
2:20:59
Rank: #2541 (+39)
21M → 35K
4:48 | 6:25/mi
23M
2:29:20
Rank: #2485 (+56)
35K → 23M
8:21 | 6:40/mi
24M
2:35:44
Rank: #2405 (+80)
23M → 24M
6:24 | 6:24/mi
40K· 24.85 mi
2:41:26
Rank: #2384 (+21)
24M → 40K
5:42 | 6:40/mi
25.2M
2:43:59
Rank: #2384
40K → 25.2M
2:33 | 7:24/mi
Finish· 26.22 mi
2:50:52
Rank: #2421 (-37)
25.2M → Finish
6:53 | 6:45/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:25:13
Pace6:30 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:25:39
Pace6:32 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:1420:226:3320:22
6:33
-
10K
6.21 mi10:43:3240:406:3320:18
6:32
-0:01
15K
9.32 mi11:03:381:00:466:3120:06
6:28
-0:04
20K
12.43 mi11:23:451:20:536:3120:07
6:28
0:00
Half
13.11 mi11:28:051:25:136:304:20
6:21
-0:07
25K
15.53 mi11:43:331:40:416:2915:28
6:23
+0:02
30K
18.64 mi12:03:292:00:376:2819:56
6:25
+0:02
20M
20.00 mi12:12:142:09:226:288:45
6:26
+0:01
21M
21.00 mi12:19:032:16:116:296:49
6:49
+0:23
35K
21.75 mi12:23:512:20:596:294:48
6:25
-0:24
23M
23.00 mi12:32:122:29:206:308:21
6:40
+0:15
24M
24.00 mi12:38:362:35:446:296:24
6:24
-0:16
40K
24.85 mi12:44:182:41:266:305:42
6:40
+0:16
25.2M
25.20 mi12:46:512:43:596:302:33
7:24
+0:44
Finish
26.22 mi12:53:442:50:526:316:53
6:45
-0:39

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

6:21 /mi

Average Pace

6:31 /mi

Slowest Pace

7:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:48:19

99% of race

Time at Steady Pace

2:33

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:31 /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 mi10:23:1420:226:3320:22
6:33
#4248
10K
6.21 mi10:43:3240:406:3320:18
6:32
#4107
15K
9.32 mi11:03:381:00:466:3120:06
6:28
#3829
20K
12.43 mi11:23:451:20:536:3120:07
6:28
#3578
Half
13.11 mi11:28:051:25:136:304:20
6:21
#3511
25K
15.53 mi11:43:331:40:416:2915:28
6:23
#3263
30K
18.64 mi12:03:292:00:376:2819:56
6:25
#2850
20M
20.00 mi12:12:142:09:226:288:45
6:26
#2680
21M
21.00 mi12:19:032:16:116:296:49
6:49
#2580
35K
21.75 mi12:23:512:20:596:294:48
6:25
#2541
23M
23.00 mi12:32:122:29:206:308:21
6:40
#2485
24M
24.00 mi12:38:362:35:446:296:24
6:24
#2405
40K
24.85 mi12:44:182:41:266:305:42
6:40
#2384
25.2M
25.20 mi12:46:512:43:596:302:33
7:24
#2384
Finish
26.22 mi12:53:442:50:526:316:53
6:45
#2421
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4248399739973374(Top 12%)3201(Top 20%)3201(Top 57%)
10K6.21 mi3.10 mi4107+1413871+1263871+1263980(Top 14%)3747(Top 23%)3747(Top 66%)
15K9.32 mi3.11 mi3829+2783614+2573614+2573374(Top 12%)3201(Top 20%)3201(Top 57%)
20K12.43 mi3.11 mi3578+2513388+2263388+2262975(Top 10%)2832(Top 18%)2832(Top 50%)
Half13.11 mi0.68 mi3511+673327+613327+612819(Top 10%)2695(Top 17%)2695(Top 48%)
25K15.53 mi2.42 mi3263+2483107+2203107+2202265(Top 8%)2155(Top 13%)2155(Top 38%)
30K18.64 mi3.11 mi2850+4132714+3932714+3931625(Top 6%)1540(Top 10%)1540(Top 27%)
20M20.00 mi1.36 mi2680+1702554+1602554+1601401(Top 5%)1326(Top 8%)1326(Top 24%)
21M21.00 mi1.00 mi2580+1002459+952459+951604(Top 6%)1513(Top 9%)1513(Top 27%)
35K21.75 mi0.75 mi2541+392420+392420+392112(Top 7%)1979(Top 12%)1979(Top 35%)
23M23.00 mi1.25 mi2485+562365+552365+552131(Top 8%)1992(Top 12%)1992(Top 35%)
24M24.00 mi1.00 mi2405+802287+782287+781673(Top 6%)1560(Top 10%)1560(Top 28%)
40K24.85 mi0.85 mi2384+212266+212266+212248(Top 8%)2063(Top 13%)2063(Top 37%)
25.2M25.20 mi0.35 mi23842263+32263+32945(Top 10%)2624(Top 16%)2624(Top 47%)
Finish26.22 mi1.02 mi2421-372296-332296-334220(Top 15%)3597(Top 22%)3597(Top 64%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3374

Males

3201

M18-39

3201

5K→10K

3.1 - 6.2 mi

Top 14%
×5stories
+79ft-138ft

Overall

3980

Males

3747

M18-39

3747

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3374

Males

3201

M18-39

3201

15K→20K

9.3 - 12.4 mi

Top 10%
×5stories
+106ft-86ft

Overall

2975

Males

2832

M18-39

2832

20K→Half

12.4 - 13.1 mi

Top 10%
×2stories
+19ft-37ft

Overall

2819

Males

2695

M18-39

2695

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2265

Males

2155

M18-39

2155

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1625

Males

1540

M18-39

1540

30K→20M

18.6 - 20.0 mi

Top 5%
×5stories
+64ft-50ft

Overall

1401

Males

1326

M18-39

1326

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1604

Males

1513

M18-39

1513

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

2112

Males

1979

M18-39

1979

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2131

Males

1992

M18-39

1992

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1673

Males

1560

M18-39

1560

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2248

Males

2063

M18-39

2063

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2945

Males

2624

M18-39

2624

25.2M→Finish

25.2 - 26.2 mi

Top 15%
×2stories
+22ft-21ft

Overall

4220

Males

3597

M18-39

3597

Passing Analysis

Category:
Athletes Passed
2091
Passed By
264
Net Change
+1827
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4248
5K → 10K22988+141#4248#4107
10K → 15K29012+278#4107#3829
15K → 20K2565+251#3829#3578
20K → Half670+67#3578#3511
Half → 25K2546+248#3511#3263
25K → 30K4163+413#3263#2850
30K → 20M1700+170#2850#2680
20M → 21M11313+100#2680#2580
21M → 35K5213+39#2580#2541
35K → 23M7620+56#2541#2485
23M → 24M855+80#2485#2405
24M → 40K4221+21#2405#2384
40K → 25.2M17170#2384#2384
25.2M → Finish2461-37#2384#2421
TOTALS2091264+1827
📊

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