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BOSTON MARATHON 2025

Oscar Perez Lopez

Bib: 546•M

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 10%
Gender (Male)
#0 / 16105
Top 17%
Division (M18-39)
#0 / 5642
Top 38%
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
5:39/mi
17:34
↑ 97↓ 3451.5%
10K· 6.21 mi
5:42/mi
35:18
↑ 79↓ 1380.4%
15K· 9.32 mi
5:48/mi
53:19
↑ 67↓ 78
20K· 12.43 mi
5:52/mi
1:11:34
↑ 106↓ 860.1%
Half· 13.11 mi
5:44/mi
1:15:29
↑ 19↓ 370.5%
25K· 15.53 mi
5:52/mi
1:29:42
↑ 66↓ 880.2%
30K· 18.64 mi
6:05/mi
1:48:37
↑ 181↓ 1480.2%
20M
6:20/mi
1:57:13
↑ 64↓ 500.2%
21M
6:56/mi
2:04:09
↑ 106↓ 241.6%
35K· 21.75 mi
11:26/mi
2:12:42
↑ 17↓ 861.7%
23M
9:25/mi
2:24:29
↑ 23↓ 630.6%
24M
8:26/mi
2:32:55
↓ 821.3%
40K· 24.85 mi
11:22/mi
2:42:38
↓ 200.3%
25.2M
9:20/mi
2:45:51
↑ 13↓ 160.2%
Finish· 26.22 mi
7:23/mi
2:53:22
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:15:29
Pace5:45 /mi
2nd Half
Distance13.11 mi
Time1:37:53
Pace7:28 /mi
📊Positive Split: 29.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:17:4217:345:3917:34
5:39
-
10K
6.21 mi10:35:2635:185:4117:44
5:42
+0:03
15K
9.32 mi10:53:2753:195:4318:01
5:48
+0:06
20K
12.43 mi11:11:421:11:345:4618:15
5:52
+0:04
Half
13.11 mi11:15:371:15:295:453:55
5:44
-0:08
25K
15.53 mi11:29:501:29:425:4614:13
5:52
+0:08
30K
18.64 mi11:48:451:48:375:5018:55
6:05
+0:13
20M
20.00 mi11:57:211:57:135:528:36
6:20
+0:15
21M
21.00 mi12:04:172:04:095:556:56
6:56
+0:36
35K
21.75 mi12:12:502:12:426:068:33
11:26
+4:30
23M
23.00 mi12:24:372:24:296:1711:47
9:25
-2:01
24M
24.00 mi12:33:032:32:556:228:26
8:26
-0:59
40K
24.85 mi12:42:462:42:386:339:43
11:22
+2:56
25.2M
25.20 mi12:45:592:45:516:353:13
9:20
-2:02
Finish
26.22 mi12:53:302:53:226:377:31
7:23
-1:57

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

5:39 /mi

Average Pace

6:37 /mi

Slowest Pace

11:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:04:09

72% of race

Time at Slower Pace

49:13

28% of race

Average Pace: 6:37 /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 mi10:17:4217:345:3917:34
5:39
#373
10K
6.21 mi10:35:2635:185:4117:44
5:42
#407
15K
9.32 mi10:53:2753:195:4318:01
5:48
#451
20K
12.43 mi11:11:421:11:345:4618:15
5:52
#474
Half
13.11 mi11:15:371:15:295:453:55
5:44
#472
25K
15.53 mi11:29:501:29:425:4614:13
5:52
#467
30K
18.64 mi11:48:451:48:375:5018:55
6:05
#477
20M
20.00 mi11:57:211:57:135:528:36
6:20
#489
21M
21.00 mi12:04:172:04:095:556:56
6:56
#526
35K
21.75 mi12:12:502:12:426:068:33
11:26
#930
23M
23.00 mi12:24:372:24:296:1711:47
9:25
#1479
24M
24.00 mi12:33:032:32:556:228:26
8:26
#1842
40K
24.85 mi12:42:462:42:386:339:43
11:22
#2622
25.2M
25.20 mi12:45:592:45:516:353:13
9:20
#2737
Finish
26.22 mi12:53:302:53:226:377:31
7:23
#2880
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi373340340522(Top 2%)485(Top 3%)485(Top 9%)
10K6.21 mi3.10 mi407-34374-34374-34471(Top 2%)435(Top 3%)435(Top 8%)
15K9.32 mi3.11 mi451-44415-41415-41522(Top 2%)485(Top 3%)485(Top 9%)
20K12.43 mi3.11 mi474-23438-23438-23566(Top 2%)523(Top 3%)523(Top 9%)
Half13.11 mi0.68 mi472+2436+2436+2490(Top 2%)460(Top 3%)460(Top 8%)
25K15.53 mi2.42 mi467+5431+5431+5506(Top 2%)472(Top 3%)472(Top 8%)
30K18.64 mi3.11 mi477-10441-10441-10661(Top 2%)619(Top 4%)619(Top 11%)
20M20.00 mi1.36 mi489-12450-9450-91045(Top 4%)987(Top 6%)987(Top 17%)
21M21.00 mi1.00 mi526-37484-34484-341994(Top 7%)1877(Top 12%)1877(Top 33%)
35K21.75 mi0.75 mi930-404874-390874-39024977(Top 88%)14335(Top 89%)14335(Top 254%)
23M23.00 mi1.25 mi1479-5491398-5241398-52418262(Top 64%)11095(Top 69%)11095(Top 197%)
24M24.00 mi1.00 mi1842-3631745-3471745-34714047(Top 49%)9146(Top 57%)9146(Top 162%)
40K24.85 mi0.85 mi2622-7802486-7412486-74123872(Top 84%)13700(Top 85%)13700(Top 243%)
25.2M25.20 mi0.35 mi2737-1152591-1052591-10513488(Top 47%)8658(Top 54%)8658(Top 153%)
Finish26.22 mi1.02 mi2880-1432723-1322723-1328268(Top 29%)6044(Top 38%)6044(Top 107%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21story building
+97ft-345ft

Overall

522

Males

485

M18-39

485

5K→10K

3.1 - 6.2 mi

Top 2%
×5story building
+79ft-138ft

Overall

471

Males

435

M18-39

435

10K→15K

6.2 - 9.3 mi

Top 2%
×3story building
+67ft-78ft

Overall

522

Males

485

M18-39

485

15K→20K

9.3 - 12.4 mi

Top 2%
×5story building
+106ft-86ft

Overall

566

Males

523

M18-39

523

20K→Half

12.4 - 13.1 mi

Top 2%
×2story building
+19ft-37ft

Overall

490

Males

460

M18-39

460

Half→25K

13.1 - 15.5 mi

Top 2%
×4story building
+66ft-88ft

Overall

506

Males

472

M18-39

472

25K→30K

15.5 - 18.6 mi

Top 2%
×9story building
+181ft-148ft

Overall

661

Males

619

M18-39

619

30K→20M

18.6 - 20.0 mi

Top 4%
×5story building
+64ft-50ft

Overall

1045

Males

987

M18-39

987

20M→21M

20.0 - 21.0 mi

Top 7%
×8story building
+106ft-24ft

Overall

1994

Males

1877

M18-39

1877

21M→35K

21.0 - 21.8 mi

Top 88%
×7story building
+17ft-86ft

Overall

24977

Males

14335

M18-39

14335

35K→23M

21.8 - 23.0 mi

Top 64%
×5story building
+23ft-63ft

Overall

18262

Males

11095

M18-39

11095

23M→24M

23.0 - 24.0 mi

Top 49%
×6story building
+12ft-82ft

Overall

14047

Males

9146

M18-39

9146

24M→40K

24.0 - 24.9 mi

Top 84%
×1story
+6ft-20ft

Overall

23872

Males

13700

M18-39

13700

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

13488

Males

8658

M18-39

8658

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2story building
+22ft-21ft

Overall

8268

Males

6044

M18-39

6044

Passing Analysis

Category:
Athletes Passed
94
Passed By
2601
Net Change
-2507
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#373
5K → 10K1145-34#373#407
10K → 15K1054-44#407#451
15K → 20K1235-23#451#474
20K → Half31+2#474#472
Half → 25K2116+5#472#467
25K → 30K1626-10#467#477
30K → 20M618-12#477#489
20M → 21M239-37#489#526
21M → 35K0404-404#526#930
35K → 23M1550-549#930#1479
23M → 24M1364-363#1479#1842
24M → 40K2782-780#1842#2622
40K → 25.2M2117-115#2622#2737
25.2M → Finish7150-143#2737#2880
TOTALS942601-2507
📊

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