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BOSTON MARATHON 2025

Aldemar Gonzalez León

Bib: 7394•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 25%
Gender (Male)
#0 / 16105
Top 38%
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
20:38
Rank: #4944
Start → 5K
20:38 | 6:38/mi
10K· 6.21 mi
40:58
Rank: #4446 (+498)
5K → 10K
20:20 | 6:33/mi
15K· 9.32 mi
1:02:04
Rank: #4866 (-420)
10K → 15K
21:06 | 6:47/mi
20K· 12.43 mi
1:22:58
Rank: #4790 (+76)
15K → 20K
20:54 | 6:44/mi
Half· 13.11 mi
1:27:31
Rank: #4786 (+4)
20K → Half
4:33 | 6:40/mi
25K· 15.53 mi
1:44:05
Rank: #4800 (-14)
Half → 25K
16:34 | 6:50/mi
30K· 18.64 mi
2:06:10
Rank: #4902 (-102)
25K → 30K
22:05 | 7:06/mi
20M
2:16:14
Rank: #5021 (-119)
30K → 20M
10:04 | 7:24/mi
21M
2:24:20
Rank: #5218 (-197)
20M → 21M
8:06 | 8:06/mi
35K· 21.75 mi
2:30:19
Rank: #5470 (-252)
21M → 35K
5:59 | 8:00/mi
23M
2:40:34
Rank: #5688 (-218)
35K → 23M
10:15 | 8:11/mi
24M
2:48:54
Rank: #5937 (-249)
23M → 24M
8:20 | 8:20/mi
40K· 24.85 mi
2:56:20
Rank: #6157 (-220)
24M → 40K
7:26 | 8:42/mi
25.2M
3:00:04
Rank: #6369 (-212)
40K → 25.2M
3:44 | 10:50/mi
Finish· 26.22 mi
3:10:02
Rank: #7074 (-705)
25.2M → Finish
9:58 | 9:47/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:31
Pace6:41 /mi
2nd Half
Distance13.11 mi
Time1:42:31
Pace7:49 /mi
📊Positive Split: 17.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:1620:386:3820:38
6:38
-
10K
6.21 mi10:46:3640:586:3620:20
6:33
-0:05
15K
9.32 mi11:07:421:02:046:4021:06
6:47
+0:14
20K
12.43 mi11:28:361:22:586:4120:54
6:44
-0:03
Half
13.11 mi11:33:091:27:316:414:33
6:40
-0:04
25K
15.53 mi11:49:431:44:056:4216:34
6:50
+0:10
30K
18.64 mi12:11:482:06:106:4622:05
7:06
+0:16
20M
20.00 mi12:21:522:16:146:4910:04
7:24
+0:18
21M
21.00 mi12:29:582:24:206:528:06
8:06
+0:42
35K
21.75 mi12:35:572:30:196:555:59
8:00
-0:06
23M
23.00 mi12:46:122:40:346:5910:15
8:11
+0:11
24M
24.00 mi12:54:322:48:547:028:20
8:20
+0:09
40K
24.85 mi13:01:582:56:207:067:26
8:42
+0:22
25.2M
25.20 mi13:05:423:00:047:093:44
10:50
+2:08
Finish
26.22 mi13:15:403:10:027:159:58
9:47
-1:03

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

6:33 /mi

Average Pace

7:15 /mi

Slowest Pace

10:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:27:31

46% of race

Time at Steady Pace

54:42

29% of race

Time at Slower Pace

47:49

25% of race

Average Pace: 7:15 /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 mi10:26:1620:386:3820:38
6:38
#4944
10K
6.21 mi10:46:3640:586:3620:20
6:33
#4446
15K
9.32 mi11:07:421:02:046:4021:06
6:47
#4866
20K
12.43 mi11:28:361:22:586:4120:54
6:44
#4790
Half
13.11 mi11:33:091:27:316:414:33
6:40
#4786
25K
15.53 mi11:49:431:44:056:4216:34
6:50
#4800
30K
18.64 mi12:11:482:06:106:4622:05
7:06
#4902
20M
20.00 mi12:21:522:16:146:4910:04
7:24
#5021
21M
21.00 mi12:29:582:24:206:528:06
8:06
#5218
35K
21.75 mi12:35:572:30:196:555:59
8:00
#5470
23M
23.00 mi12:46:122:40:346:5910:15
8:11
#5688
24M
24.00 mi12:54:322:48:547:028:20
8:20
#5937
40K
24.85 mi13:01:582:56:207:067:26
8:42
#6157
25.2M
25.20 mi13:05:423:00:047:093:44
10:50
#6369
Finish
26.22 mi13:15:403:10:027:159:58
9:47
#7074
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4944462846286000(Top 21%)5454(Top 34%)5454(Top 97%)
10K6.21 mi3.10 mi4446+4984181+4474181+4474040(Top 14%)3801(Top 24%)3801(Top 67%)
15K9.32 mi3.11 mi4866-4204546-3654546-3656000(Top 21%)5454(Top 34%)5454(Top 97%)
20K12.43 mi3.11 mi4790+764469+774469+774674(Top 16%)4336(Top 27%)4336(Top 77%)
Half13.11 mi0.68 mi4786+44463+64463+65007(Top 18%)4636(Top 29%)4636(Top 82%)
25K15.53 mi2.42 mi4800-144465-24465-25126(Top 18%)4701(Top 29%)4701(Top 83%)
30K18.64 mi3.11 mi4902-1024531-664531-665355(Top 19%)4821(Top 30%)4821(Top 85%)
20M20.00 mi1.36 mi5021-1194624-934624-936417(Top 23%)5470(Top 34%)5470(Top 97%)
21M21.00 mi1.00 mi5218-1974783-1594783-1597914(Top 28%)6196(Top 38%)6196(Top 110%)
35K21.75 mi0.75 mi5470-2524988-2054988-20512193(Top 43%)8398(Top 52%)8398(Top 149%)
23M23.00 mi1.25 mi5688-2185138-1505138-15011248(Top 40%)7860(Top 49%)7860(Top 139%)
24M24.00 mi1.00 mi5937-2495315-1775315-17713430(Top 47%)8849(Top 55%)8849(Top 157%)
40K24.85 mi0.85 mi6157-2205464-1495464-14914532(Top 51%)9221(Top 57%)9221(Top 163%)
25.2M25.20 mi0.35 mi6369-2125596-1325596-13220050(Top 71%)11792(Top 73%)11792(Top 209%)
Finish26.22 mi1.02 mi7074-7056042-4466042-44622175(Top 78%)12858(Top 80%)12858(Top 228%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21stories
+97ft-345ft

Overall

6000

Males

5454

M18-39

5454

5K→10K

3.1 - 6.2 mi

Top 14%
×5stories
+79ft-138ft

Overall

4040

Males

3801

M18-39

3801

10K→15K

6.2 - 9.3 mi

Top 21%
×3stories
+67ft-78ft

Overall

6000

Males

5454

M18-39

5454

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4674

Males

4336

M18-39

4336

20K→Half

12.4 - 13.1 mi

Top 18%
×2stories
+19ft-37ft

Overall

5007

Males

4636

M18-39

4636

Half→25K

13.1 - 15.5 mi

Top 18%
×4stories
+66ft-88ft

Overall

5126

Males

4701

M18-39

4701

25K→30K

15.5 - 18.6 mi

Top 19%
×9stories
+181ft-148ft

Overall

5355

Males

4821

M18-39

4821

30K→20M

18.6 - 20.0 mi

Top 23%
×5stories
+64ft-50ft

Overall

6417

Males

5470

M18-39

5470

20M→21M

20.0 - 21.0 mi

Top 28%
×8stories
+106ft-24ft

Overall

7914

Males

6196

M18-39

6196

21M→35K

21.0 - 21.8 mi

Top 43%
×7stories
+17ft-86ft

Overall

12193

Males

8398

M18-39

8398

35K→23M

21.8 - 23.0 mi

Top 40%
×5stories
+23ft-63ft

Overall

11248

Males

7860

M18-39

7860

23M→24M

23.0 - 24.0 mi

Top 47%
×6stories
+12ft-82ft

Overall

13430

Males

8849

M18-39

8849

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

14532

Males

9221

M18-39

9221

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1story
+13ft-16ft

Overall

20050

Males

11792

M18-39

11792

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2stories
+22ft-21ft

Overall

22175

Males

12858

M18-39

12858

Passing Analysis

Category:
Athletes Passed
1129
Passed By
3259
Net Change
-2130
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4944
5K → 10K52224+498#4944#4446
10K → 15K25445-420#4446#4866
15K → 20K15983+76#4866#4790
20K → Half2622+4#4790#4786
Half → 25K101115-14#4786#4800
25K → 30K132234-102#4800#4902
30K → 20M39158-119#4902#5021
20M → 21M39236-197#5021#5218
21M → 35K11263-252#5218#5470
35K → 23M36254-218#5470#5688
23M → 24M17266-249#5688#5937
24M → 40K15235-220#5937#6157
40K → 25.2M3215-212#6157#6369
25.2M → Finish4709-705#6369#7074
TOTALS11293259-2130
📊

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