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BOSTON MARATHON 2025

Nicolas Zafra Bueno

Bib: 5262•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 25%
Gender (Male)
#0 / 16105
Top 38%
Masters (Masters Men)
#0 / 10463
Top 25%
Division (M45-49)
#0 / 2386
Top 34%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:07
Rank: #3651
Start → 5K
20:07 | 6:28/mi
10K· 6.21 mi
40:35
Rank: #3990 (-339)
5K → 10K
20:28 | 6:35/mi
15K· 9.32 mi
1:01:06
Rank: #4068 (-78)
10K → 15K
20:31 | 6:36/mi
20K· 12.43 mi
1:22:09
Rank: #4262 (-194)
15K → 20K
21:03 | 6:47/mi
Half· 13.11 mi
1:26:39
Rank: #4244 (+18)
20K → Half
4:30 | 6:36/mi
25K· 15.53 mi
1:43:48
Rank: #4642 (-398)
Half → 25K
17:09 | 7:04/mi
30K· 18.64 mi
2:08:02
Rank: #5726 (-1084)
25K → 30K
24:14 | 7:48/mi
20M
2:18:48
Rank: #6008 (-282)
30K → 20M
10:46 | 7:55/mi
21M
2:27:12
Rank: #6150 (-142)
20M → 21M
8:24 | 8:24/mi
35K· 21.75 mi
2:33:26
Rank: #6347 (-197)
21M → 35K
6:14 | 8:20/mi
23M
2:44:03
Rank: #6612 (-265)
35K → 23M
10:37 | 8:29/mi
24M
2:52:18
Rank: #6853 (-241)
23M → 24M
8:15 | 8:15/mi
40K· 24.85 mi
2:59:02
Rank: #6901 (-48)
24M → 40K
6:44 | 7:53/mi
25.2M
3:02:23
Rank: #7034 (-133)
40K → 25.2M
3:21 | 9:43/mi
Finish· 26.22 mi
3:10:31
Rank: #7197 (-163)
25.2M → Finish
8:08 | 7:59/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:39
Pace6:37 /mi
2nd Half
Distance13.11 mi
Time1:43:52
Pace7:55 /mi
📊Positive Split: 19.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:2020:076:2820:07
6:28
-
10K
6.21 mi10:44:4840:356:3220:28
6:35
+0:07
15K
9.32 mi11:05:191:01:066:3320:31
6:36
+0:01
20K
12.43 mi11:26:221:22:096:3721:03
6:47
+0:11
Half
13.11 mi11:30:521:26:396:374:30
6:36
-0:11
25K
15.53 mi11:48:011:43:486:4117:09
7:04
+0:28
30K
18.64 mi12:12:152:08:026:5224:14
7:48
+0:44
20M
20.00 mi12:23:012:18:486:5610:46
7:55
+0:07
21M
21.00 mi12:31:252:27:127:018:24
8:24
+0:29
35K
21.75 mi12:37:392:33:267:036:14
8:20
-0:04
23M
23.00 mi12:48:162:44:037:0810:37
8:29
+0:09
24M
24.00 mi12:56:312:52:187:118:15
8:15
-0:14
40K
24.85 mi13:03:152:59:027:126:44
7:53
-0:22
25.2M
25.20 mi13:06:363:02:237:143:21
9:43
+1:50
Finish
26.22 mi13:14:443:10:317:168:08
7:59
-1:44

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

6:28 /mi

Average Pace

7:16 /mi

Slowest Pace

9:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:43:48

54% of race

Time at Steady Pace

1:04:21

34% of race

Time at Slower Pace

22:22

12% of race

Average Pace: 7:16 /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 mi10:24:2020:076:2820:07
6:28
#3651
10K
6.21 mi10:44:4840:356:3220:28
6:35
#3990
15K
9.32 mi11:05:191:01:066:3320:31
6:36
#4068
20K
12.43 mi11:26:221:22:096:3721:03
6:47
#4262
Half
13.11 mi11:30:521:26:396:374:30
6:36
#4244
25K
15.53 mi11:48:011:43:486:4117:09
7:04
#4642
30K
18.64 mi12:12:152:08:026:5224:14
7:48
#5726
20M
20.00 mi12:23:012:18:486:5610:46
7:55
#6008
21M
21.00 mi12:31:252:27:127:018:24
8:24
#6150
35K
21.75 mi12:37:392:33:267:036:14
8:20
#6347
23M
23.00 mi12:48:162:44:037:0810:37
8:29
#6612
24M
24.00 mi12:56:312:52:187:118:15
8:15
#6853
40K
24.85 mi13:03:152:59:027:126:44
7:53
#6901
25.2M
25.20 mi13:06:363:02:237:143:21
9:43
#7034
Finish
26.22 mi13:14:443:10:317:168:08
7:59
#7197
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi3651346334634254(Top 15%)3998(Top 25%)3998(Top 168%)
10K6.21 mi3.10 mi3990-3393771-3083771-3084372(Top 15%)4105(Top 25%)4105(Top 172%)
15K9.32 mi3.11 mi4068-783837-663837-664254(Top 15%)3998(Top 25%)3998(Top 168%)
20K12.43 mi3.11 mi4262-1944007-1704007-1705058(Top 18%)4666(Top 29%)4666(Top 196%)
Half13.11 mi0.68 mi4244+183991+163991+164373(Top 15%)4095(Top 25%)4095(Top 172%)
25K15.53 mi2.42 mi4642-3984328-3374328-3376793(Top 24%)5970(Top 37%)5970(Top 250%)
30K18.64 mi3.11 mi5726-10845217-8895217-8899912(Top 35%)7634(Top 47%)7634(Top 320%)
20M20.00 mi1.36 mi6008-2825424-2075424-2079875(Top 35%)7456(Top 46%)7456(Top 312%)
21M21.00 mi1.00 mi6150-1425524-1005524-1009807(Top 35%)7251(Top 45%)7251(Top 304%)
35K21.75 mi0.75 mi6347-1975663-1395663-13914400(Top 51%)9432(Top 59%)9432(Top 395%)
23M23.00 mi1.25 mi6612-2655823-1605823-16013148(Top 46%)8758(Top 54%)8758(Top 367%)
24M24.00 mi1.00 mi6853-2415970-1475970-14712868(Top 45%)8572(Top 53%)8572(Top 359%)
40K24.85 mi0.85 mi6901-485974-45974-49252(Top 33%)6645(Top 41%)6645(Top 278%)
25.2M25.20 mi0.35 mi7034-1336041-676041-6715574(Top 55%)9640(Top 60%)9640(Top 404%)
Finish26.22 mi1.02 mi7197-1636127-866127-8612720(Top 45%)8383(Top 52%)8383(Top 351%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 15%
×21stories
+97ft-345ft

Overall

4254

Males

3998

M45-49

3998

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

4372

Males

4105

M45-49

4105

10K→15K

6.2 - 9.3 mi

Top 15%
×3stories
+67ft-78ft

Overall

4254

Males

3998

M45-49

3998

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

5058

Males

4666

M45-49

4666

20K→Half

12.4 - 13.1 mi

Top 15%
×2stories
+19ft-37ft

Overall

4373

Males

4095

M45-49

4095

Half→25K

13.1 - 15.5 mi

Top 24%
×4stories
+66ft-88ft

Overall

6793

Males

5970

M45-49

5970

25K→30K

15.5 - 18.6 mi

Top 35%
×9stories
+181ft-148ft

Overall

9912

Males

7634

M45-49

7634

30K→20M

18.6 - 20.0 mi

Top 35%
×5stories
+64ft-50ft

Overall

9875

Males

7456

M45-49

7456

20M→21M

20.0 - 21.0 mi

Top 35%
×8stories
+106ft-24ft

Overall

9807

Males

7251

M45-49

7251

21M→35K

21.0 - 21.8 mi

Top 51%
×7stories
+17ft-86ft

Overall

14400

Males

9432

M45-49

9432

35K→23M

21.8 - 23.0 mi

Top 46%
×5stories
+23ft-63ft

Overall

13148

Males

8758

M45-49

8758

23M→24M

23.0 - 24.0 mi

Top 45%
×6stories
+12ft-82ft

Overall

12868

Males

8572

M45-49

8572

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

9252

Males

6645

M45-49

6645

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

15574

Males

9640

M45-49

9640

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2stories
+22ft-21ft

Overall

12720

Males

8383

M45-49

8383

Passing Analysis

Category:
Athletes Passed
431
Passed By
3977
Net Change
-3546
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3651
5K → 10K36375-339#3651#3990
10K → 15K54132-78#3990#4068
15K → 20K53247-194#4068#4262
20K → Half3214+18#4262#4244
Half → 25K37435-398#4244#4642
25K → 30K331117-1084#4642#5726
30K → 20M16298-282#5726#6008
20M → 21M29171-142#6008#6150
21M → 35K12209-197#6150#6347
35K → 23M36301-265#6347#6612
23M → 24M24265-241#6612#6853
24M → 40K4492-48#6853#6901
40K → 25.2M4137-133#6901#7034
25.2M → Finish21184-163#7034#7197
TOTALS4313977-3546
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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