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BOSTON MARATHON 2025

Alexander Le

Bib: 3458•M

NJ

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 12%
Gender (Male)
#0 / 16105
Top 20%
Division (M18-39)
#0 / 5642
Top 44%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:20
Rank: #4166
Start → 5K
20:20 | 6:33/mi
10K· 6.21 mi
40:40
Rank: #4111 (+55)
5K → 10K
20:20 | 6:33/mi
15K· 9.32 mi
1:01:00
Rank: #3995 (+116)
10K → 15K
20:20 | 6:33/mi
20K· 12.43 mi
1:21:30
Rank: #3869 (+126)
15K → 20K
20:30 | 6:36/mi
Half· 13.11 mi
1:26:00
Rank: #3888 (-19)
20K → Half
4:30 | 6:36/mi
25K· 15.53 mi
1:42:10
Rank: #3853 (+35)
Half → 25K
16:10 | 6:40/mi
30K· 18.64 mi
2:03:43
Rank: #3873 (-20)
25K → 30K
21:33 | 6:56/mi
20M
2:13:15
Rank: #3856 (+17)
30K → 20M
9:32 | 7:01/mi
21M
2:20:38
Rank: #3832 (+24)
20M → 21M
7:23 | 7:23/mi
35K· 21.75 mi
2:25:42
Rank: #3822 (+10)
21M → 35K
5:04 | 6:46/mi
23M
2:34:25
Rank: #3770 (+52)
35K → 23M
8:43 | 6:58/mi
24M
2:41:09
Rank: #3722 (+48)
23M → 24M
6:44 | 6:44/mi
40K· 24.85 mi
2:46:55
Rank: #3637 (+85)
24M → 40K
5:46 | 6:45/mi
25.2M
2:49:24
Rank: #3574 (+63)
40K → 25.2M
2:29 | 7:12/mi
Finish· 26.22 mi
2:56:00
Rank: #3487 (+87)
25.2M → Finish
6:36 | 6:29/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:00
Pace6:34 /mi
2nd Half
Distance13.11 mi
Time1:30:00
Pace6:52 /mi
📊Positive Split: 4.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:4720:206:3320:20
6:33
-
10K
6.21 mi10:43:0740:406:3320:20
6:33
0:00
15K
9.32 mi11:03:271:01:006:3320:20
6:33
0:00
20K
12.43 mi11:23:571:21:306:3320:30
6:36
+0:03
Half
13.11 mi11:28:271:26:006:344:30
6:36
0:00
25K
15.53 mi11:44:371:42:106:3516:10
6:40
+0:04
30K
18.64 mi12:06:102:03:436:3821:33
6:56
+0:16
20M
20.00 mi12:15:422:13:156:409:32
7:01
+0:05
21M
21.00 mi12:23:052:20:386:427:23
7:23
+0:22
35K
21.75 mi12:28:092:25:426:425:04
6:46
-0:37
23M
23.00 mi12:36:522:34:256:438:43
6:58
+0:12
24M
24.00 mi12:43:362:41:096:436:44
6:44
-0:14
40K
24.85 mi12:49:222:46:556:435:46
6:45
+0:01
25.2M
25.20 mi12:51:512:49:246:432:29
7:12
+0:27
Finish
26.22 mi12:58:272:56:006:436:36
6:29
-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

6:29 /mi

Average Pace

6:43 /mi

Slowest Pace

7:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:46:08

94% of race

Time at Steady Pace

9:52

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:43 /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 mi10:22:4720:206:3320:20
6:33
#4166
10K
6.21 mi10:43:0740:406:3320:20
6:33
#4111
15K
9.32 mi11:03:271:01:006:3320:20
6:33
#3995
20K
12.43 mi11:23:571:21:306:3320:30
6:36
#3869
Half
13.11 mi11:28:271:26:006:344:30
6:36
#3888
25K
15.53 mi11:44:371:42:106:3516:10
6:40
#3853
30K
18.64 mi12:06:102:03:436:3821:33
6:56
#3873
20M
20.00 mi12:15:422:13:156:409:32
7:01
#3856
21M
21.00 mi12:23:052:20:386:427:23
7:23
#3832
35K
21.75 mi12:28:092:25:426:425:04
6:46
#3822
23M
23.00 mi12:36:522:34:256:438:43
6:58
#3770
24M
24.00 mi12:43:362:41:096:436:44
6:44
#3722
40K
24.85 mi12:49:222:46:556:435:46
6:45
#3637
25.2M
25.20 mi12:51:512:49:246:432:29
7:12
#3574
Finish
26.22 mi12:58:272:56:006:436:36
6:29
#3487
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4166392739273842(Top 14%)3626(Top 23%)3626(Top 64%)
10K6.21 mi3.10 mi4111+553875+523875+524043(Top 14%)3804(Top 24%)3804(Top 67%)
15K9.32 mi3.11 mi3995+1163766+1093766+1093842(Top 14%)3626(Top 23%)3626(Top 64%)
20K12.43 mi3.11 mi3869+1263646+1203646+1203689(Top 13%)3484(Top 22%)3484(Top 62%)
Half13.11 mi0.68 mi3888-193663-173663-174387(Top 15%)4109(Top 26%)4109(Top 73%)
25K15.53 mi2.42 mi3853+353630+333630+333907(Top 14%)3654(Top 23%)3654(Top 65%)
30K18.64 mi3.11 mi3873-203646-163646-164316(Top 15%)3959(Top 25%)3959(Top 70%)
20M20.00 mi1.36 mi3856+173626+203626+204199(Top 15%)3838(Top 24%)3838(Top 68%)
21M21.00 mi1.00 mi3832+243600+263600+264028(Top 14%)3651(Top 23%)3651(Top 65%)
35K21.75 mi0.75 mi3822+103587+133587+133957(Top 14%)3557(Top 22%)3557(Top 63%)
23M23.00 mi1.25 mi3770+523531+563531+563541(Top 12%)3211(Top 20%)3211(Top 57%)
24M24.00 mi1.00 mi3722+483478+533478+533147(Top 11%)2843(Top 18%)2843(Top 50%)
40K24.85 mi0.85 mi3637+853396+823396+822609(Top 9%)2377(Top 15%)2377(Top 42%)
25.2M25.20 mi0.35 mi3574+633338+583338+582193(Top 8%)1982(Top 12%)1982(Top 35%)
Finish26.22 mi1.02 mi3487+873256+823256+822717(Top 10%)2447(Top 15%)2447(Top 43%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21stories
+97ft-345ft

Overall

3842

Males

3626

M18-39

3626

5K→10K

3.1 - 6.2 mi

Top 14%
×5stories
+79ft-138ft

Overall

4043

Males

3804

M18-39

3804

10K→15K

6.2 - 9.3 mi

Top 14%
×3stories
+67ft-78ft

Overall

3842

Males

3626

M18-39

3626

15K→20K

9.3 - 12.4 mi

Top 13%
×5stories
+106ft-86ft

Overall

3689

Males

3484

M18-39

3484

20K→Half

12.4 - 13.1 mi

Top 15%
×2stories
+19ft-37ft

Overall

4387

Males

4109

M18-39

4109

Half→25K

13.1 - 15.5 mi

Top 14%
×4stories
+66ft-88ft

Overall

3907

Males

3654

M18-39

3654

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

4316

Males

3959

M18-39

3959

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

4199

Males

3838

M18-39

3838

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

4028

Males

3651

M18-39

3651

21M→35K

21.0 - 21.8 mi

Top 14%
×7stories
+17ft-86ft

Overall

3957

Males

3557

M18-39

3557

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3541

Males

3211

M18-39

3211

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

3147

Males

2843

M18-39

2843

24M→40K

24.0 - 24.9 mi

Top 9%
×1story
+6ft-20ft

Overall

2609

Males

2377

M18-39

2377

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2193

Males

1982

M18-39

1982

25.2M→Finish

25.2 - 26.2 mi

Top 10%
×2stories
+22ft-21ft

Overall

2717

Males

2447

M18-39

2447

Passing Analysis

Category:
Athletes Passed
1297
Passed By
618
Net Change
+679
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4166
5K → 10K180125+55#4166#4111
10K → 15K16044+116#4111#3995
15K → 20K16539+126#3995#3869
20K → Half726-19#3869#3888
Half → 25K9257+35#3888#3853
25K → 30K106126-20#3853#3873
30K → 20M6548+17#3873#3856
20M → 21M7147+24#3856#3832
21M → 35K3222+10#3832#3822
35K → 23M9240+52#3822#3770
23M → 24M7022+48#3770#3722
24M → 40K938+85#3722#3637
40K → 25.2M652+63#3637#3574
25.2M → Finish9912+87#3574#3487
TOTALS1297618+679
📊

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