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BOSTON MARATHON 2025

Nick Nowlen

Bib: 1767•M

CO

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 31%
Gender (Male)
#0 / 16105
Top 44%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:12
Rank: #1756
Start → 5K
19:12 | 6:11/mi
10K· 6.21 mi
39:03
Rank: #2317 (-561)
5K → 10K
19:51 | 6:23/mi
15K· 9.32 mi
59:23
Rank: #2821 (-504)
10K → 15K
20:20 | 6:33/mi
20K· 12.43 mi
1:20:44
Rank: #3485 (-664)
15K → 20K
21:21 | 6:52/mi
Half· 13.11 mi
1:25:14
Rank: #3528 (-43)
20K → Half
4:30 | 6:36/mi
25K· 15.53 mi
1:42:21
Rank: #3924 (-396)
Half → 25K
17:07 | 7:04/mi
30K· 18.64 mi
2:06:56
Rank: #5249 (-1325)
25K → 30K
24:35 | 7:55/mi
20M
2:18:11
Rank: #5796 (-547)
30K → 20M
11:15 | 8:17/mi
21M
2:29:04
Rank: #6691 (-895)
20M → 21M
10:53 | 10:53/mi
35K· 21.75 mi
2:36:14
Rank: #7212 (-521)
21M → 35K
7:10 | 9:35/mi
23M
2:47:53
Rank: #7802 (-590)
35K → 23M
11:39 | 9:18/mi
24M
2:57:56
Rank: #8641 (-839)
23M → 24M
10:03 | 10:03/mi
40K· 24.85 mi
3:05:23
Rank: #8866 (-225)
24M → 40K
7:27 | 8:43/mi
25.2M
3:08:19
Rank: #8853 (+13)
40K → 25.2M
2:56 | 8:30/mi
Finish· 26.22 mi
3:15:41
Rank: #8776 (+77)
25.2M → Finish
7:22 | 7:14/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:14
Pace6:30 /mi
2nd Half
Distance13.11 mi
Time1:50:27
Pace8:26 /mi
📊Positive Split: 29.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:3619:126:1119:12
6:11
-
10K
6.21 mi10:40:2739:036:1719:51
6:23
+0:12
15K
9.32 mi11:00:4759:236:2220:20
6:33
+0:10
20K
12.43 mi11:22:081:20:446:3021:21
6:52
+0:19
Half
13.11 mi11:26:381:25:146:304:30
6:36
-0:16
25K
15.53 mi11:43:451:42:216:3517:07
7:04
+0:28
30K
18.64 mi12:08:202:06:566:4924:35
7:55
+0:51
20M
20.00 mi12:19:352:18:116:5511:15
8:17
+0:22
21M
21.00 mi12:30:282:29:047:0610:53
10:53
+2:36
35K
21.75 mi12:37:382:36:147:117:10
9:35
-1:18
23M
23.00 mi12:49:172:47:537:1811:39
9:18
-0:17
24M
24.00 mi12:59:202:57:567:2510:03
10:03
+0:45
40K
24.85 mi13:06:473:05:237:287:27
8:43
-1:20
25.2M
25.20 mi13:09:433:08:197:282:56
8:30
-0:13
Finish
26.22 mi13:17:053:15:417:287:22
7:14
-1:16

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

6:11 /mi

Average Pace

7:28 /mi

Slowest Pace

10:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:21

52% of race

Time at Steady Pace

46:08

24% of race

Time at Slower Pace

47:12

24% of race

Average Pace: 7:28 /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 mi10:20:3619:126:1119:12
6:11
#1756
10K
6.21 mi10:40:2739:036:1719:51
6:23
#2317
15K
9.32 mi11:00:4759:236:2220:20
6:33
#2821
20K
12.43 mi11:22:081:20:446:3021:21
6:52
#3485
Half
13.11 mi11:26:381:25:146:304:30
6:36
#3528
25K
15.53 mi11:43:451:42:216:3517:07
7:04
#3924
30K
18.64 mi12:08:202:06:566:4924:35
7:55
#5249
20M
20.00 mi12:19:352:18:116:5511:15
8:17
#5796
21M
21.00 mi12:30:282:29:047:0610:53
10:53
#6691
35K
21.75 mi12:37:382:36:147:117:10
9:35
#7212
23M
23.00 mi12:49:172:47:537:1811:39
9:18
#7802
24M
24.00 mi12:59:202:57:567:2510:03
10:03
#8641
40K
24.85 mi13:06:473:05:237:287:27
8:43
#8866
25.2M
25.20 mi13:09:433:08:197:282:56
8:30
#8853
Finish
26.22 mi13:17:053:15:417:287:22
7:14
#8776
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1756166816683850(Top 14%)3634(Top 23%)3634(Top 64%)
10K6.21 mi3.10 mi2317-5612209-5412209-5412986(Top 11%)2844(Top 18%)2844(Top 50%)
15K9.32 mi3.11 mi2821-5042690-4812690-4813850(Top 14%)3634(Top 23%)3634(Top 64%)
20K12.43 mi3.11 mi3485-6643304-6143304-6145983(Top 21%)5426(Top 34%)5426(Top 96%)
Half13.11 mi0.68 mi3528-433343-393343-394439(Top 16%)4161(Top 26%)4161(Top 74%)
25K15.53 mi2.42 mi3924-3963698-3553698-3556710(Top 24%)5911(Top 37%)5911(Top 105%)
30K18.64 mi3.11 mi5249-13254823-11254823-112510721(Top 38%)8034(Top 50%)8034(Top 142%)
20M20.00 mi1.36 mi5796-5475266-4435266-44312315(Top 43%)8670(Top 54%)8670(Top 154%)
21M21.00 mi1.00 mi6691-8955932-6665932-66621061(Top 74%)12525(Top 78%)12525(Top 222%)
35K21.75 mi0.75 mi7212-5216279-3476279-34720574(Top 72%)12233(Top 76%)12233(Top 217%)
23M23.00 mi1.25 mi7802-5906614-3356614-33517764(Top 63%)10842(Top 67%)10842(Top 192%)
24M24.00 mi1.00 mi8641-8397098-4847098-48421483(Top 76%)12580(Top 78%)12580(Top 223%)
40K24.85 mi0.85 mi8866-2257187-897187-8914654(Top 52%)9272(Top 58%)9272(Top 164%)
25.2M25.20 mi0.35 mi8853+137165+227165+228779(Top 31%)6338(Top 39%)6338(Top 112%)
Finish26.22 mi1.02 mi8776+777085+807085+807218(Top 25%)5465(Top 34%)5465(Top 97%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21stories
+97ft-345ft

Overall

3850

Males

3634

M18-39

3634

5K→10K

3.1 - 6.2 mi

Top 11%
×5stories
+79ft-138ft

Overall

2986

Males

2844

M18-39

2844

10K→15K

6.2 - 9.3 mi

Top 14%
×3stories
+67ft-78ft

Overall

3850

Males

3634

M18-39

3634

15K→20K

9.3 - 12.4 mi

Top 21%
×5stories
+106ft-86ft

Overall

5983

Males

5426

M18-39

5426

20K→Half

12.4 - 13.1 mi

Top 16%
×2stories
+19ft-37ft

Overall

4439

Males

4161

M18-39

4161

Half→25K

13.1 - 15.5 mi

Top 24%
×4stories
+66ft-88ft

Overall

6710

Males

5911

M18-39

5911

25K→30K

15.5 - 18.6 mi

Top 38%
×9stories
+181ft-148ft

Overall

10721

Males

8034

M18-39

8034

30K→20M

18.6 - 20.0 mi

Top 43%
×5stories
+64ft-50ft

Overall

12315

Males

8670

M18-39

8670

20M→21M

20.0 - 21.0 mi

Top 74%
×8stories
+106ft-24ft

Overall

21061

Males

12525

M18-39

12525

21M→35K

21.0 - 21.8 mi

Top 72%
×7stories
+17ft-86ft

Overall

20574

Males

12233

M18-39

12233

35K→23M

21.8 - 23.0 mi

Top 63%
×5stories
+23ft-63ft

Overall

17764

Males

10842

M18-39

10842

23M→24M

23.0 - 24.0 mi

Top 76%
×6stories
+12ft-82ft

Overall

21483

Males

12580

M18-39

12580

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

14654

Males

9272

M18-39

9272

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8779

Males

6338

M18-39

6338

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2stories
+22ft-21ft

Overall

7218

Males

5465

M18-39

5465

Passing Analysis

Category:
Athletes Passed
296
Passed By
7316
Net Change
-7020
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1756
5K → 10K7568-561#1756#2317
10K → 15K10514-504#2317#2821
15K → 20K11675-664#2821#3485
20K → Half346-43#3485#3528
Half → 25K17413-396#3528#3924
25K → 30K161341-1325#3924#5249
30K → 20M8555-547#5249#5796
20M → 21M3898-895#5796#6691
21M → 35K4525-521#6691#7212
35K → 23M17607-590#7212#7802
23M → 24M3842-839#7802#8641
24M → 40K33258-225#8641#8866
40K → 25.2M4330+13#8866#8853
25.2M → Finish12144+77#8853#8776
TOTALS2967316-7020
📊

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