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BOSTON MARATHON 2025

Joaquin Velazquez Leon

Bib: 1348•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 6%
Gender (Male)
#0 / 16105
Top 9%
Division (M18-39)
#0 / 5642
Top 22%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
5:58/mi
18:31
↑ 97↓ 3451.5%
10K· 6.21 mi
6:00/mi
37:10
↑ 79↓ 1380.4%
15K· 9.32 mi
6:06/mi
56:06
↑ 67↓ 78
20K· 12.43 mi
6:07/mi
1:15:07
↑ 106↓ 860.1%
Half· 13.11 mi
6:06/mi
1:19:17
↑ 19↓ 370.5%
25K· 15.53 mi
6:10/mi
1:34:14
↑ 66↓ 880.2%
30K· 18.64 mi
6:24/mi
1:54:06
↑ 181↓ 1480.2%
20M
6:34/mi
2:03:02
↑ 64↓ 500.2%
21M
6:59/mi
2:10:01
↑ 106↓ 241.6%
35K· 21.75 mi
6:49/mi
2:15:07
↑ 17↓ 861.7%
23M
7:16/mi
2:24:13
↑ 23↓ 630.6%
24M
6:44/mi
2:30:57
↓ 821.3%
40K· 24.85 mi
7:03/mi
2:36:59
↓ 200.3%
25.2M
7:58/mi
2:39:44
↑ 13↓ 160.2%
Finish· 26.22 mi
6:24/mi
2:46:15
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:19:17
Pace6:03 /mi
2nd Half
Distance13.11 mi
Time1:26:58
Pace6:38 /mi
📊Positive Split: 9.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:1918:315:5818:31
5:58
-
10K
6.21 mi10:37:5837:105:5918:39
6:00
+0:02
15K
9.32 mi10:56:5456:066:0118:56
6:06
+0:06
20K
12.43 mi11:15:551:15:076:0319:01
6:07
+0:01
Half
13.11 mi11:20:051:19:176:034:10
6:06
-0:01
25K
15.53 mi11:35:021:34:146:0414:57
6:10
+0:04
30K
18.64 mi11:54:541:54:066:0719:52
6:24
+0:14
20M
20.00 mi12:03:502:03:026:098:56
6:34
+0:10
21M
21.00 mi12:10:492:10:016:116:59
6:59
+0:25
35K
21.75 mi12:15:552:15:076:135:06
6:49
-0:10
23M
23.00 mi12:25:012:24:136:169:06
7:16
+0:27
24M
24.00 mi12:31:452:30:576:176:44
6:44
-0:32
40K
24.85 mi12:37:472:36:596:196:02
7:03
+0:19
25.2M
25.20 mi12:40:322:39:446:202:45
7:58
+0:55
Finish
26.22 mi12:47:032:46:156:216:31
6:24
-1:34

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

5:58 /mi

Average Pace

6:21 /mi

Slowest Pace

7:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:19:17

48% of race

Time at Steady Pace

50:16

30% of race

Time at Slower Pace

36:42

22% of race

Average Pace: 6:20 /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 mi10:19:1918:315:5818:31
5:58
#966
10K
6.21 mi10:37:5837:105:5918:39
6:00
#1022
15K
9.32 mi10:56:5456:066:0118:56
6:06
#1108
20K
12.43 mi11:15:551:15:076:0319:01
6:07
#1120
Half
13.11 mi11:20:051:19:176:034:10
6:06
#1133
25K
15.53 mi11:35:021:34:146:0414:57
6:10
#1153
30K
18.64 mi11:54:541:54:066:0719:52
6:24
#1200
20M
20.00 mi12:03:502:03:026:098:56
6:34
#1237
21M
21.00 mi12:10:492:10:016:116:59
6:59
#1251
35K
21.75 mi12:15:552:15:076:135:06
6:49
#1299
23M
23.00 mi12:25:012:24:136:169:06
7:16
#1432
24M
24.00 mi12:31:452:30:576:176:44
6:44
#1465
40K
24.85 mi12:37:472:36:596:196:02
7:03
#1521
25.2M
25.20 mi12:40:322:39:446:202:45
7:58
#1567
Finish
26.22 mi12:47:032:46:156:216:31
6:24
#1572
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi9669089081347(Top 5%)1279(Top 8%)1279(Top 23%)
10K6.21 mi3.10 mi1022-56962-54962-541106(Top 4%)1044(Top 6%)1044(Top 19%)
15K9.32 mi3.11 mi1108-861047-851047-851347(Top 5%)1279(Top 8%)1279(Top 23%)
20K12.43 mi3.11 mi1120-121060-131060-131255(Top 4%)1190(Top 7%)1190(Top 21%)
Half13.11 mi0.68 mi1133-131073-131073-131574(Top 6%)1497(Top 9%)1497(Top 27%)
25K15.53 mi2.42 mi1153-201089-161089-161332(Top 5%)1262(Top 8%)1262(Top 22%)
30K18.64 mi3.11 mi1200-471132-431132-431534(Top 5%)1452(Top 9%)1452(Top 26%)
20M20.00 mi1.36 mi1237-371168-361168-361924(Top 7%)1821(Top 11%)1821(Top 32%)
21M21.00 mi1.00 mi1251-141180-121180-122202(Top 8%)2058(Top 13%)2058(Top 36%)
35K21.75 mi0.75 mi1299-481225-451225-454217(Top 15%)3770(Top 23%)3770(Top 67%)
23M23.00 mi1.25 mi1432-1331352-1271352-1275264(Top 19%)4500(Top 28%)4500(Top 80%)
24M24.00 mi1.00 mi1465-331385-331385-333132(Top 11%)2828(Top 18%)2828(Top 50%)
40K24.85 mi0.85 mi1521-561437-521437-524214(Top 15%)3651(Top 23%)3651(Top 65%)
25.2M25.20 mi0.35 mi1567-461482-451482-455769(Top 20%)4594(Top 29%)4594(Top 81%)
Finish26.22 mi1.02 mi1572-51487-51487-52298(Top 8%)2101(Top 13%)2101(Top 37%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21story building
+97ft-345ft

Overall

1347

Males

1279

M18-39

1279

5K→10K

3.1 - 6.2 mi

Top 4%
×5story building
+79ft-138ft

Overall

1106

Males

1044

M18-39

1044

10K→15K

6.2 - 9.3 mi

Top 5%
×3story building
+67ft-78ft

Overall

1347

Males

1279

M18-39

1279

15K→20K

9.3 - 12.4 mi

Top 4%
×5story building
+106ft-86ft

Overall

1255

Males

1190

M18-39

1190

20K→Half

12.4 - 13.1 mi

Top 6%
×2story building
+19ft-37ft

Overall

1574

Males

1497

M18-39

1497

Half→25K

13.1 - 15.5 mi

Top 5%
×4story building
+66ft-88ft

Overall

1332

Males

1262

M18-39

1262

25K→30K

15.5 - 18.6 mi

Top 5%
×9story building
+181ft-148ft

Overall

1534

Males

1452

M18-39

1452

30K→20M

18.6 - 20.0 mi

Top 7%
×5story building
+64ft-50ft

Overall

1924

Males

1821

M18-39

1821

20M→21M

20.0 - 21.0 mi

Top 8%
×8story building
+106ft-24ft

Overall

2202

Males

2058

M18-39

2058

21M→35K

21.0 - 21.8 mi

Top 15%
×7story building
+17ft-86ft

Overall

4217

Males

3770

M18-39

3770

35K→23M

21.8 - 23.0 mi

Top 19%
×5story building
+23ft-63ft

Overall

5264

Males

4500

M18-39

4500

23M→24M

23.0 - 24.0 mi

Top 11%
×6story building
+12ft-82ft

Overall

3132

Males

2828

M18-39

2828

24M→40K

24.0 - 24.9 mi

Top 15%
×1story
+6ft-20ft

Overall

4214

Males

3651

M18-39

3651

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5769

Males

4594

M18-39

4594

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2story building
+22ft-21ft

Overall

2298

Males

2101

M18-39

2101

Passing Analysis

Category:
Athletes Passed
256
Passed By
862
Net Change
-606
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#966
5K → 10K2783-56#966#1022
10K → 15K1298-86#1022#1108
15K → 20K3244-12#1108#1120
20K → Half114-13#1120#1133
Half → 25K2949-20#1133#1153
25K → 30K3582-47#1153#1200
30K → 20M2360-37#1200#1237
20M → 21M2034-14#1237#1251
21M → 35K957-48#1251#1299
35K → 23M11144-133#1299#1432
23M → 24M2356-33#1432#1465
24M → 40K1066-56#1465#1521
40K → 25.2M147-46#1521#1567
25.2M → Finish2328-5#1567#1572
TOTALS256862-606
📊

Passing Visuals

Category:
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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