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BOSTON MARATHON 2025

Norb Nieves

Bib: 2986•M

IL

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 6%
Gender (Male)
#0 / 16105
Top 10%
Division (M18-39)
#0 / 5642
Top 23%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:13
Rank: #1783
Start → 5K
19:13 | 6:11/mi
10K· 6.21 mi
38:21
Rank: #1738 (+45)
5K → 10K
19:08 | 6:10/mi
15K· 9.32 mi
57:32
Rank: #1731 (+7)
10K → 15K
19:11 | 6:10/mi
20K· 12.43 mi
1:16:39
Rank: #1614 (+117)
15K → 20K
19:07 | 6:09/mi
Half· 13.11 mi
1:20:46
Rank: #1587 (+27)
20K → Half
4:07 | 6:02/mi
25K· 15.53 mi
1:35:49
Rank: #1545 (+42)
Half → 25K
15:03 | 6:12/mi
30K· 18.64 mi
1:55:34
Rank: #1479 (+66)
25K → 30K
19:45 | 6:21/mi
20M
2:04:26
Rank: #1473 (+6)
30K → 20M
8:52 | 6:31/mi
21M
2:11:14
Rank: #1452 (+21)
20M → 21M
6:48 | 6:48/mi
35K· 21.75 mi
2:16:02
Rank: #1453 (-1)
21M → 35K
4:48 | 6:25/mi
23M
2:24:20
Rank: #1454 (-1)
35K → 23M
8:18 | 6:38/mi
24M
2:30:50
Rank: #1444 (+10)
23M → 24M
6:30 | 6:30/mi
40K· 24.85 mi
2:36:50
Rank: #1494 (-50)
24M → 40K
6:00 | 7:01/mi
25.2M
2:39:21
Rank: #1499 (-5)
40K → 25.2M
2:31 | 7:18/mi
Finish· 26.22 mi
2:46:33
Rank: #1626 (-127)
25.2M → Finish
7:12 | 7:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:20:46
Pace6:10 /mi
2nd Half
Distance13.11 mi
Time1:25:47
Pace6:33 /mi
📊Positive Split: 6.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:5119:136:1119:13
6:11
-
10K
6.21 mi10:39:5938:216:1019:08
6:10
-0:01
15K
9.32 mi10:59:1057:326:1019:11
6:10
0:00
20K
12.43 mi11:18:171:16:396:1019:07
6:09
-0:01
Half
13.11 mi11:22:241:20:466:104:07
6:02
-0:07
25K
15.53 mi11:37:271:35:496:1015:03
6:12
+0:10
30K
18.64 mi11:57:121:55:346:1219:45
6:21
+0:09
20M
20.00 mi12:06:042:04:266:138:52
6:31
+0:10
21M
21.00 mi12:12:522:11:146:156:48
6:48
+0:17
35K
21.75 mi12:17:402:16:026:154:48
6:25
-0:23
23M
23.00 mi12:25:582:24:206:178:18
6:38
+0:13
24M
24.00 mi12:32:282:30:506:176:30
6:30
-0:08
40K
24.85 mi12:38:282:36:506:196:00
7:01
+0:31
25.2M
25.20 mi12:40:592:39:216:192:31
7:18
+0:17
Finish
26.22 mi12:48:112:46:336:217:12
7:04
-0:14

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

6:02 /mi

Average Pace

6:21 /mi

Slowest Pace

7:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:35:49

58% of race

Time at Steady Pace

39:55

24% of race

Time at Slower Pace

30:49

19% of race

Average Pace: 6:21 /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 mi10:20:5119:136:1119:13
6:11
#1783
10K
6.21 mi10:39:5938:216:1019:08
6:10
#1738
15K
9.32 mi10:59:1057:326:1019:11
6:10
#1731
20K
12.43 mi11:18:171:16:396:1019:07
6:09
#1614
Half
13.11 mi11:22:241:20:466:104:07
6:02
#1587
25K
15.53 mi11:37:271:35:496:1015:03
6:12
#1545
30K
18.64 mi11:57:121:55:346:1219:45
6:21
#1479
20M
20.00 mi12:06:042:04:266:138:52
6:31
#1473
21M
21.00 mi12:12:522:11:146:156:48
6:48
#1452
35K
21.75 mi12:17:402:16:026:154:48
6:25
#1453
23M
23.00 mi12:25:582:24:206:178:18
6:38
#1454
24M
24.00 mi12:32:282:30:506:176:30
6:30
#1444
40K
24.85 mi12:38:282:36:506:196:00
7:01
#1494
25.2M
25.20 mi12:40:592:39:216:192:31
7:18
#1499
Finish
26.22 mi12:48:112:46:336:217:12
7:04
#1626
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1783169416941725(Top 6%)1638(Top 10%)1638(Top 29%)
10K6.21 mi3.10 mi1738+451653+411653+411716(Top 6%)1633(Top 10%)1633(Top 29%)
15K9.32 mi3.11 mi1731+71646+71646+71725(Top 6%)1638(Top 10%)1638(Top 29%)
20K12.43 mi3.11 mi1614+1171532+1141532+1141390(Top 5%)1317(Top 8%)1317(Top 23%)
Half13.11 mi0.68 mi1587+271507+251507+251307(Top 5%)1241(Top 8%)1241(Top 22%)
25K15.53 mi2.42 mi1545+421464+431464+431493(Top 5%)1419(Top 9%)1419(Top 25%)
30K18.64 mi3.11 mi1479+661399+651399+651399(Top 5%)1323(Top 8%)1323(Top 23%)
20M20.00 mi1.36 mi1473+61393+61393+61724(Top 6%)1630(Top 10%)1630(Top 29%)
21M21.00 mi1.00 mi1452+211372+211372+211542(Top 5%)1453(Top 9%)1453(Top 26%)
35K21.75 mi0.75 mi1453-11373-11373-12100(Top 7%)1967(Top 12%)1967(Top 35%)
23M23.00 mi1.25 mi1454-1137313731957(Top 7%)1828(Top 11%)1828(Top 32%)
24M24.00 mi1.00 mi1444+101364+91364+92056(Top 7%)1909(Top 12%)1909(Top 34%)
40K24.85 mi0.85 mi1494-501411-471411-474014(Top 14%)3502(Top 22%)3502(Top 62%)
25.2M25.20 mi0.35 mi1499-51416-51416-52530(Top 9%)2264(Top 14%)2264(Top 40%)
Finish26.22 mi1.02 mi1626-1271539-1231539-1236140(Top 22%)4816(Top 30%)4816(Top 85%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1725

Males

1638

M18-39

1638

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1716

Males

1633

M18-39

1633

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1725

Males

1638

M18-39

1638

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1390

Males

1317

M18-39

1317

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1307

Males

1241

M18-39

1241

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1493

Males

1419

M18-39

1419

25K→30K

15.5 - 18.6 mi

Top 5%
×9stories
+181ft-148ft

Overall

1399

Males

1323

M18-39

1323

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1724

Males

1630

M18-39

1630

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1542

Males

1453

M18-39

1453

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

2100

Males

1967

M18-39

1967

35K→23M

21.8 - 23.0 mi

Top 7%
×5stories
+23ft-63ft

Overall

1957

Males

1828

M18-39

1828

23M→24M

23.0 - 24.0 mi

Top 7%
×6stories
+12ft-82ft

Overall

2056

Males

1909

M18-39

1909

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

4014

Males

3502

M18-39

3502

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2530

Males

2264

M18-39

2264

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2stories
+22ft-21ft

Overall

6140

Males

4816

M18-39

4816

Passing Analysis

Category:
Athletes Passed
672
Passed By
515
Net Change
+157
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1783
5K → 10K10863+45#1783#1738
10K → 15K6558+7#1738#1731
15K → 20K1236+117#1731#1614
20K → Half281+27#1614#1587
Half → 25K5917+42#1587#1545
25K → 30K9630+66#1545#1479
30K → 20M3731+6#1479#1473
20M → 21M4120+21#1473#1452
21M → 35K2122-1#1452#1453
35K → 23M3637-1#1453#1454
23M → 24M3828+10#1454#1444
24M → 40K757-50#1444#1494
40K → 25.2M1116-5#1494#1499
25.2M → Finish2129-127#1499#1626
TOTALS672515+157
📊

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