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BOSTON MARATHON 2025

Eric Nickels

Bib: 4120•M

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 8%
Gender (Male)
#0 / 16105
Top 14%
Division (M18-39)
#0 / 5642
Top 32%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:25
Rank: #4350
Start → 5K
20:25 | 6:34/mi
10K· 6.21 mi
40:35
Rank: #3986 (+364)
5K → 10K
20:10 | 6:29/mi
15K· 9.32 mi
1:00:52
Rank: #3883 (+103)
10K → 15K
20:17 | 6:32/mi
20K· 12.43 mi
1:21:06
Rank: #3685 (+198)
15K → 20K
20:14 | 6:31/mi
Half· 13.11 mi
1:25:29
Rank: #3660 (+25)
20K → Half
4:23 | 6:25/mi
25K· 15.53 mi
1:41:26
Rank: #3572 (+88)
Half → 25K
15:57 | 6:35/mi
30K· 18.64 mi
2:02:25
Rank: #3430 (+142)
25K → 30K
20:59 | 6:45/mi
20M
2:11:27
Rank: #3292 (+138)
30K → 20M
9:02 | 6:39/mi
21M
2:18:17
Rank: #3136 (+156)
20M → 21M
6:50 | 6:50/mi
35K· 21.75 mi
2:22:58
Rank: #3038 (+98)
21M → 35K
4:41 | 6:16/mi
23M
2:30:46
Rank: #2807 (+231)
35K → 23M
7:48 | 6:14/mi
24M
2:36:49
Rank: #2639 (+168)
23M → 24M
6:03 | 6:03/mi
40K· 24.85 mi
2:42:09
Rank: #2520 (+119)
24M → 40K
5:20 | 6:14/mi
25.2M
2:44:27
Rank: #2477 (+43)
40K → 25.2M
2:18 | 6:40/mi
Finish· 26.22 mi
2:50:27
Rank: #2345 (+132)
25.2M → Finish
6:00 | 5:53/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:25:29
Pace6:31 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:24:58
Pace6:29 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:1920:256:3420:25
6:34
-
10K
6.21 mi10:43:2940:356:3220:10
6:29
-0:05
15K
9.32 mi11:03:461:00:526:3220:17
6:32
+0:03
20K
12.43 mi11:24:001:21:066:3220:14
6:31
-0:01
Half
13.11 mi11:28:231:25:296:314:23
6:25
-0:06
25K
15.53 mi11:44:201:41:266:3215:57
6:35
+0:10
30K
18.64 mi12:05:192:02:256:3420:59
6:45
+0:10
20M
20.00 mi12:14:212:11:276:349:02
6:39
-0:06
21M
21.00 mi12:21:112:18:176:356:50
6:50
+0:11
35K
21.75 mi12:25:522:22:586:344:41
6:16
-0:34
23M
23.00 mi12:33:402:30:466:337:48
6:14
-0:02
24M
24.00 mi12:39:432:36:496:326:03
6:03
-0:11
40K
24.85 mi12:45:032:42:096:315:20
6:14
+0:11
25.2M
25.20 mi12:47:212:44:276:322:18
6:40
+0:26
Finish
26.22 mi12:53:212:50:276:306:00
5:53
-0:47

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

5:53 /mi

Average Pace

6:30 /mi

Slowest Pace

6:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

34:15

20% of race

Time at Steady Pace

2:16:12

80% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:30 /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 mi10:23:1920:256:3420:25
6:34
#4350
10K
6.21 mi10:43:2940:356:3220:10
6:29
#3986
15K
9.32 mi11:03:461:00:526:3220:17
6:32
#3883
20K
12.43 mi11:24:001:21:066:3220:14
6:31
#3685
Half
13.11 mi11:28:231:25:296:314:23
6:25
#3660
25K
15.53 mi11:44:201:41:266:3215:57
6:35
#3572
30K
18.64 mi12:05:192:02:256:3420:59
6:45
#3430
20M
20.00 mi12:14:212:11:276:349:02
6:39
#3292
21M
21.00 mi12:21:112:18:176:356:50
6:50
#3136
35K
21.75 mi12:25:522:22:586:344:41
6:16
#3038
23M
23.00 mi12:33:402:30:466:337:48
6:14
#2807
24M
24.00 mi12:39:432:36:496:326:03
6:03
#2639
40K
24.85 mi12:45:032:42:096:315:20
6:14
#2520
25.2M
25.20 mi12:47:212:44:276:322:18
6:40
#2477
Finish
26.22 mi12:53:212:50:276:306:00
5:53
#2345
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4350408740873723(Top 13%)3512(Top 22%)3512(Top 62%)
10K6.21 mi3.10 mi3986+3643767+3203767+3203632(Top 13%)3431(Top 21%)3431(Top 61%)
15K9.32 mi3.11 mi3883+1033663+1043663+1043723(Top 13%)3512(Top 22%)3512(Top 62%)
20K12.43 mi3.11 mi3685+1983482+1813482+1813187(Top 11%)3022(Top 19%)3022(Top 54%)
Half13.11 mi0.68 mi3660+253460+223460+223155(Top 11%)2996(Top 19%)2996(Top 53%)
25K15.53 mi2.42 mi3572+883378+823378+823307(Top 12%)3126(Top 19%)3126(Top 55%)
30K18.64 mi3.11 mi3430+1423245+1333245+1333149(Top 11%)2953(Top 18%)2953(Top 52%)
20M20.00 mi1.36 mi3292+1383116+1293116+1292219(Top 8%)2097(Top 13%)2097(Top 37%)
21M21.00 mi1.00 mi3136+1562969+1472969+1471641(Top 6%)1550(Top 10%)1550(Top 27%)
35K21.75 mi0.75 mi3038+982877+922877+921467(Top 5%)1391(Top 9%)1391(Top 25%)
23M23.00 mi1.25 mi2807+2312663+2142663+214740(Top 3%)699(Top 4%)699(Top 12%)
24M24.00 mi1.00 mi2639+1682506+1572506+157689(Top 2%)647(Top 4%)647(Top 11%)
40K24.85 mi0.85 mi2520+1192390+1162390+116843(Top 3%)792(Top 5%)792(Top 14%)
25.2M25.20 mi0.35 mi2477+432349+412349+41731(Top 3%)681(Top 4%)681(Top 12%)
Finish26.22 mi1.02 mi2345+1322223+1262223+126666(Top 2%)627(Top 4%)627(Top 11%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21stories
+97ft-345ft

Overall

3723

Males

3512

M18-39

3512

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3632

Males

3431

M18-39

3431

10K→15K

6.2 - 9.3 mi

Top 13%
×3stories
+67ft-78ft

Overall

3723

Males

3512

M18-39

3512

15K→20K

9.3 - 12.4 mi

Top 11%
×5stories
+106ft-86ft

Overall

3187

Males

3022

M18-39

3022

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

3155

Males

2996

M18-39

2996

Half→25K

13.1 - 15.5 mi

Top 12%
×4stories
+66ft-88ft

Overall

3307

Males

3126

M18-39

3126

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

3149

Males

2953

M18-39

2953

30K→20M

18.6 - 20.0 mi

Top 8%
×5stories
+64ft-50ft

Overall

2219

Males

2097

M18-39

2097

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1641

Males

1550

M18-39

1550

21M→35K

21.0 - 21.8 mi

Top 5%
×7stories
+17ft-86ft

Overall

1467

Males

1391

M18-39

1391

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

740

Males

699

M18-39

699

23M→24M

23.0 - 24.0 mi

Top 2%
×6stories
+12ft-82ft

Overall

689

Males

647

M18-39

647

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

843

Males

792

M18-39

792

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

731

Males

681

M18-39

681

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2stories
+22ft-21ft

Overall

666

Males

627

M18-39

627

Passing Analysis

Category:
Athletes Passed
2185
Passed By
180
Net Change
+2005
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4350
5K → 10K40541+364#4350#3986
10K → 15K14845+103#3986#3883
15K → 20K21012+198#3883#3685
20K → Half3510+25#3685#3660
Half → 25K10921+88#3660#3572
25K → 30K17836+142#3572#3430
30K → 20M1468+138#3430#3292
20M → 21M1604+156#3292#3136
21M → 35K991+98#3136#3038
35K → 23M2310+231#3038#2807
23M → 24M1702+168#2807#2639
24M → 40K1190+119#2639#2520
40K → 25.2M430+43#2520#2477
25.2M → Finish1320+132#2477#2345
TOTALS2185180+2005
📊

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