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BOSTON MARATHON 2025

Marcos Chaves

Bib: 12442•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 18%
Gender (Male)
#0 / 16105
Top 29%
Masters (Masters Men)
#0 / 10463
Top 15%
Division (M50-54)
#0 / 1996
Top 9%
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
6:28/mi
20:07
↑ 97↓ 3451.5%
10K· 6.21 mi
6:19/mi
39:45
↑ 79↓ 1380.4%
15K· 9.32 mi
6:20/mi
59:27
↑ 67↓ 78
20K· 12.43 mi
6:31/mi
1:19:43
↑ 106↓ 860.1%
Half· 13.11 mi
6:31/mi
1:24:10
↑ 19↓ 370.5%
25K· 15.53 mi
6:42/mi
1:40:24
↑ 66↓ 880.2%
30K· 18.64 mi
7:12/mi
2:02:46
↑ 181↓ 1480.2%
20M
7:41/mi
2:13:13
↑ 64↓ 500.2%
21M
9:16/mi
2:22:29
↑ 106↓ 241.6%
35K· 21.75 mi
7:01/mi
2:27:44
↑ 17↓ 861.7%
23M
7:52/mi
2:37:35
↑ 23↓ 630.6%
24M
7:12/mi
2:44:47
↓ 821.3%
40K· 24.85 mi
7:30/mi
2:51:12
↓ 200.3%
25.2M
8:36/mi
2:54:10
↑ 13↓ 160.2%
Finish· 26.22 mi
8:09/mi
3:02:28
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:10
Pace6:25 /mi
2nd Half
Distance13.11 mi
Time1:38:18
Pace7:30 /mi
📊Positive Split: 16.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:2120:076:2820:07
6:28
-
10K
6.21 mi11:06:5939:456:2419:38
6:19
-0:09
15K
9.32 mi11:26:4159:276:2319:42
6:20
+0:01
20K
12.43 mi11:46:571:19:436:2520:16
6:31
+0:11
Half
13.11 mi11:51:241:24:106:254:27
6:31
0:00
25K
15.53 mi12:07:381:40:246:2816:14
6:42
+0:11
30K
18.64 mi12:30:002:02:466:3522:22
7:12
+0:30
20M
20.00 mi12:40:272:13:136:4010:27
7:41
+0:29
21M
21.00 mi12:49:432:22:296:479:16
9:16
+1:35
35K
21.75 mi12:54:582:27:446:485:15
7:01
-2:15
23M
23.00 mi13:04:492:37:356:519:51
7:52
+0:51
24M
24.00 mi13:12:012:44:476:527:12
7:12
-0:40
40K
24.85 mi13:18:262:51:126:536:25
7:30
+0:18
25.2M
25.20 mi13:21:242:54:106:552:58
8:36
+1:06
Finish
26.22 mi13:29:423:02:286:588:18
8:09
-0:27

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

6:19 /mi

Average Pace

6:58 /mi

Slowest Pace

9:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:40:24

55% of race

Time at Steady Pace

41:14

23% of race

Time at Slower Pace

40:50

22% of race

Average Pace: 6:58 /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 mi10:47:2120:076:2820:07
6:28
#3648
10K
6.21 mi11:06:5939:456:2419:38
6:19
#3044
15K
9.32 mi11:26:4159:276:2319:42
6:20
#2857
20K
12.43 mi11:46:571:19:436:2520:16
6:31
#2955
Half
13.11 mi11:51:241:24:106:254:27
6:31
#2991
25K
15.53 mi12:07:381:40:246:2816:14
6:42
#3148
30K
18.64 mi12:30:002:02:466:3522:22
7:12
#3576
20M
20.00 mi12:40:272:13:136:4010:27
7:41
#3840
21M
21.00 mi12:49:432:22:296:479:16
9:16
#4492
35K
21.75 mi12:54:582:27:446:485:15
7:01
#4507
23M
23.00 mi13:04:492:37:356:519:51
7:52
#4790
24M
24.00 mi13:12:012:44:476:527:12
7:12
#4854
40K
24.85 mi13:18:262:51:126:536:25
7:30
#4938
25.2M
25.20 mi13:21:242:54:106:552:58
8:36
#4996
Finish
26.22 mi13:29:423:02:286:588:18
8:09
#5208
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi3648346034602587(Top 9%)2470(Top 15%)2470(Top 124%)
10K6.21 mi3.10 mi3044+6042896+5642896+5642532(Top 9%)2418(Top 15%)2418(Top 121%)
15K9.32 mi3.11 mi2857+1872723+1732723+1732587(Top 9%)2470(Top 15%)2470(Top 124%)
20K12.43 mi3.11 mi2955-982815-922815-923255(Top 11%)3085(Top 19%)3085(Top 155%)
Half13.11 mi0.68 mi2991-362851-362851-363831(Top 13%)3611(Top 22%)3611(Top 181%)
25K15.53 mi2.42 mi3148-1573001-1503001-1504097(Top 14%)3819(Top 24%)3819(Top 191%)
30K18.64 mi3.11 mi3576-4283380-3793380-3795889(Top 21%)5227(Top 32%)5227(Top 262%)
20M20.00 mi1.36 mi3840-2643612-2323612-2328242(Top 29%)6579(Top 41%)6579(Top 330%)
21M21.00 mi1.00 mi4492-6524169-5574169-55714932(Top 53%)9744(Top 61%)9744(Top 488%)
35K21.75 mi0.75 mi4507-154176-74176-75419(Top 19%)4659(Top 29%)4659(Top 233%)
23M23.00 mi1.25 mi4790-2834404-2284404-2289011(Top 32%)6711(Top 42%)6711(Top 336%)
24M24.00 mi1.00 mi4854-644448-444448-445797(Top 20%)4785(Top 30%)4785(Top 240%)
40K24.85 mi0.85 mi4938-844511-634511-636803(Top 24%)5308(Top 33%)5308(Top 266%)
25.2M25.20 mi0.35 mi4996-584558-474558-479300(Top 33%)6552(Top 41%)6552(Top 328%)
Finish26.22 mi1.02 mi5208-2124721-1634721-16313851(Top 49%)8920(Top 55%)8920(Top 447%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21story building
+97ft-345ft

Overall

2587

Males

2470

M50-54

2470

5K→10K

3.1 - 6.2 mi

Top 9%
×5story building
+79ft-138ft

Overall

2532

Males

2418

M50-54

2418

10K→15K

6.2 - 9.3 mi

Top 9%
×3story building
+67ft-78ft

Overall

2587

Males

2470

M50-54

2470

15K→20K

9.3 - 12.4 mi

Top 11%
×5story building
+106ft-86ft

Overall

3255

Males

3085

M50-54

3085

20K→Half

12.4 - 13.1 mi

Top 13%
×2story building
+19ft-37ft

Overall

3831

Males

3611

M50-54

3611

Half→25K

13.1 - 15.5 mi

Top 14%
×4story building
+66ft-88ft

Overall

4097

Males

3819

M50-54

3819

25K→30K

15.5 - 18.6 mi

Top 21%
×9story building
+181ft-148ft

Overall

5889

Males

5227

M50-54

5227

30K→20M

18.6 - 20.0 mi

Top 29%
×5story building
+64ft-50ft

Overall

8242

Males

6579

M50-54

6579

20M→21M

20.0 - 21.0 mi

Top 53%
×8story building
+106ft-24ft

Overall

14932

Males

9744

M50-54

9744

21M→35K

21.0 - 21.8 mi

Top 19%
×7story building
+17ft-86ft

Overall

5419

Males

4659

M50-54

4659

35K→23M

21.8 - 23.0 mi

Top 32%
×5story building
+23ft-63ft

Overall

9011

Males

6711

M50-54

6711

23M→24M

23.0 - 24.0 mi

Top 20%
×6story building
+12ft-82ft

Overall

5797

Males

4785

M50-54

4785

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6803

Males

5308

M50-54

5308

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

9300

Males

6552

M50-54

6552

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2story building
+22ft-21ft

Overall

13851

Males

8920

M50-54

8920

Passing Analysis

Category:
Athletes Passed
1138
Passed By
2698
Net Change
-1560
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3648
5K → 10K6128+604#3648#3044
10K → 15K21023+187#3044#2857
15K → 20K52150-98#2857#2955
20K → Half743-36#2955#2991
Half → 25K31188-157#2991#3148
25K → 30K37465-428#3148#3576
30K → 20M14278-264#3576#3840
20M → 21M5657-652#3840#4492
21M → 35K4358-15#4492#4507
35K → 23M30313-283#4507#4790
23M → 24M46110-64#4790#4854
24M → 40K32116-84#4854#4938
40K → 25.2M1371-58#4938#4996
25.2M → Finish6218-212#4996#5208
TOTALS11382698-1560
📊

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