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BOSTON MARATHON 2025

Nicolas Terrazas

Bib: 2903•M

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 3%
Gender (Male)
#0 / 16105
Top 5%
Division (M18-39)
#0 / 5642
Top 13%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:31
Rank: #961
Start → 5K
18:31 | 5:58/mi
10K· 6.21 mi
37:10
Rank: #1018 (-57)
5K → 10K
18:39 | 6:00/mi
15K· 9.32 mi
55:57
Rank: #1058 (-40)
10K → 15K
18:47 | 6:03/mi
20K· 12.43 mi
1:14:55
Rank: #1072 (-14)
15K → 20K
18:58 | 6:06/mi
Half· 13.11 mi
1:19:04
Rank: #1083 (-11)
20K → Half
4:09 | 6:05/mi
25K· 15.53 mi
1:33:51
Rank: #1073 (+10)
Half → 25K
14:47 | 6:06/mi
30K· 18.64 mi
1:53:14
Rank: #1043 (+30)
25K → 30K
19:23 | 6:14/mi
20M
2:01:51
Rank: #1017 (+26)
30K → 20M
8:37 | 6:20/mi
21M
2:08:30
Rank: #996 (+21)
20M → 21M
6:39 | 6:39/mi
35K· 21.75 mi
2:13:05
Rank: #985 (+11)
21M → 35K
4:35 | 6:08/mi
23M
2:20:56
Rank: #947 (+38)
35K → 23M
7:51 | 6:16/mi
24M
2:27:03
Rank: #934 (+13)
23M → 24M
6:07 | 6:07/mi
40K· 24.85 mi
2:32:31
Rank: #929 (+5)
24M → 40K
5:28 | 6:24/mi
25.2M
2:34:52
Rank: #921 (+8)
40K → 25.2M
2:21 | 6:49/mi
Finish· 26.22 mi
2:41:16
Rank: #936 (-15)
25.2M → Finish
6:24 | 6:17/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:19:04
Pace6:02 /mi
2nd Half
Distance13.11 mi
Time1:22:12
Pace6:16 /mi
📊Positive Split: 4.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:3718:315:5818:31
5:58
-
10K
6.21 mi10:38:1637:105:5918:39
6:00
+0:02
15K
9.32 mi10:57:0355:576:0018:47
6:03
+0:03
20K
12.43 mi11:16:011:14:556:0218:58
6:06
+0:03
Half
13.11 mi11:20:101:19:046:024:09
6:05
-0:01
25K
15.53 mi11:34:571:33:516:0214:47
6:06
+0:01
30K
18.64 mi11:54:201:53:146:0419:23
6:14
+0:08
20M
20.00 mi12:02:572:01:516:068:37
6:20
+0:06
21M
21.00 mi12:09:362:08:306:076:39
6:39
+0:19
35K
21.75 mi12:14:112:13:056:074:35
6:08
-0:31
23M
23.00 mi12:22:022:20:566:087:51
6:16
+0:08
24M
24.00 mi12:28:092:27:036:086:07
6:07
-0:09
40K
24.85 mi12:33:372:32:316:085:28
6:24
+0:17
25.2M
25.20 mi12:35:582:34:526:092:21
6:49
+0:25
Finish
26.22 mi12:42:222:41:166:096:24
6:17
-0:32

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

6:09 /mi

Slowest Pace

6:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:32:16

94% of race

Time at Steady Pace

9:00

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:09 /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 mi10:19:3718:315:5818:31
5:58
#961
10K
6.21 mi10:38:1637:105:5918:39
6:00
#1018
15K
9.32 mi10:57:0355:576:0018:47
6:03
#1058
20K
12.43 mi11:16:011:14:556:0218:58
6:06
#1072
Half
13.11 mi11:20:101:19:046:024:09
6:05
#1083
25K
15.53 mi11:34:571:33:516:0214:47
6:06
#1073
30K
18.64 mi11:54:201:53:146:0419:23
6:14
#1043
20M
20.00 mi12:02:572:01:516:068:37
6:20
#1017
21M
21.00 mi12:09:362:08:306:076:39
6:39
#996
35K
21.75 mi12:14:112:13:056:074:35
6:08
#985
23M
23.00 mi12:22:022:20:566:087:51
6:16
#947
24M
24.00 mi12:28:092:27:036:086:07
6:07
#934
40K
24.85 mi12:33:372:32:316:085:28
6:24
#929
25.2M
25.20 mi12:35:582:34:526:092:21
6:49
#921
Finish
26.22 mi12:42:222:41:166:096:24
6:17
#936
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi9619039031180(Top 4%)1118(Top 7%)1118(Top 20%)
10K6.21 mi3.10 mi1018-57958-55958-551100(Top 4%)1038(Top 6%)1038(Top 18%)
15K9.32 mi3.11 mi1058-40998-40998-401180(Top 4%)1118(Top 7%)1118(Top 20%)
20K12.43 mi3.11 mi1072-141012-141012-141184(Top 4%)1119(Top 7%)1119(Top 20%)
Half13.11 mi0.68 mi1083-111023-111023-111435(Top 5%)1363(Top 8%)1363(Top 24%)
25K15.53 mi2.42 mi1073+101012+111012+111076(Top 4%)1014(Top 6%)1014(Top 18%)
30K18.64 mi3.11 mi1043+30982+30982+301029(Top 4%)967(Top 6%)967(Top 17%)
20M20.00 mi1.36 mi1017+26957+25957+251065(Top 4%)1004(Top 6%)1004(Top 18%)
21M21.00 mi1.00 mi996+21937+20937+201045(Top 4%)988(Top 6%)988(Top 18%)
35K21.75 mi0.75 mi985+11927+10927+101005(Top 4%)946(Top 6%)946(Top 17%)
23M23.00 mi1.25 mi947+38891+36891+36811(Top 3%)766(Top 5%)766(Top 14%)
24M24.00 mi1.00 mi934+13877+14877+14807(Top 3%)759(Top 5%)759(Top 13%)
40K24.85 mi0.85 mi929+5872+5872+51226(Top 4%)1139(Top 7%)1139(Top 20%)
25.2M25.20 mi0.35 mi921+8864+8864+8991(Top 3%)909(Top 6%)909(Top 16%)
Finish26.22 mi1.02 mi936-15878-14878-141793(Top 6%)1656(Top 10%)1656(Top 29%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21stories
+97ft-345ft

Overall

1180

Males

1118

M18-39

1118

5K→10K

3.1 - 6.2 mi

Top 4%
×5stories
+79ft-138ft

Overall

1100

Males

1038

M18-39

1038

10K→15K

6.2 - 9.3 mi

Top 4%
×3stories
+67ft-78ft

Overall

1180

Males

1118

M18-39

1118

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

1184

Males

1119

M18-39

1119

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1435

Males

1363

M18-39

1363

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

1076

Males

1014

M18-39

1014

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1029

Males

967

M18-39

967

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

1065

Males

1004

M18-39

1004

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

1045

Males

988

M18-39

988

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

1005

Males

946

M18-39

946

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

811

Males

766

M18-39

766

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

807

Males

759

M18-39

759

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1226

Males

1139

M18-39

1139

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

991

Males

909

M18-39

909

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2stories
+22ft-21ft

Overall

1793

Males

1656

M18-39

1656

Passing Analysis

Category:
Athletes Passed
365
Passed By
340
Net Change
+25
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#961
5K → 10K2582-57#961#1018
10K → 15K1858-40#1018#1058
15K → 20K2741-14#1058#1072
20K → Half314-11#1072#1083
Half → 25K2919+10#1083#1073
25K → 30K6131+30#1073#1043
30K → 20M4620+26#1043#1017
20M → 21M309+21#1017#996
21M → 35K198+11#996#985
35K → 23M468+38#985#947
23M → 24M218+13#947#934
24M → 40K1712+5#934#929
40K → 25.2M113+8#929#921
25.2M → Finish1227-15#921#936
TOTALS365340+25
📊

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