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BOSTON MARATHON 2025

Nathan Stewart

Bib: 6170•M

OH

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 17%
Gender (Male)
#0 / 16105
Top 27%
Masters (Masters Men)
#0 / 10463
Top 13%
Division (M40-44)
#0 / 2247
Top 34%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:39
Rank: #4985
Start → 5K
6:39/mi
20:39 split
10K· 6.21 mi
41:30
Rank: #5173 (-188)
5K → 10K
6:43/mi
20:51 split
15K· 9.32 mi
1:02:14
Rank: #5028 (+145)
10K → 15K
6:40/mi
20:44 split
20K· 12.43 mi
1:22:57
Rank: #4773 (+255)
15K → 20K
6:40/mi
20:43 split
Half· 13.11 mi
1:27:33
Rank: #4810 (-37)
20K → Half
6:45/mi
4:36 split
25K· 15.53 mi
1:44:09
Rank: #4840 (-30)
Half → 25K
6:51/mi
16:36 split
30K· 18.64 mi
2:06:07
Rank: #4872 (-32)
25K → 30K
7:04/mi
21:58 split
20M
2:15:53
Rank: #4877 (-5)
30K → 20M
7:11/mi
9:46 split
21M
2:23:32
Rank: #4892 (-15)
20M → 21M
7:39/mi
7:39 split
35K· 21.75 mi
2:28:56
Rank: #4952 (-60)
21M → 35K
7:13/mi
5:24 split
23M
2:37:59
Rank: #4960 (-8)
35K → 23M
7:14/mi
9:03 split
24M
2:45:09
Rank: #4984 (-24)
23M → 24M
7:10/mi
7:10 split
40K· 24.85 mi
2:51:15
Rank: #4952 (+32)
24M → 40K
7:08/mi
6:06 split
25.2M
2:53:52
Rank: #4912 (+40)
40K → 25.2M
7:35/mi
2:37 split
Finish· 26.22 mi
3:00:37
Rank: #4824 (+88)
25.2M → Finish
6:37/mi
6:45 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:33
Pace6:41 /mi
2nd Half
Distance13.11 mi
Time1:33:04
Pace7:06 /mi
📊Positive Split: 6.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:2820:396:3920:39
6:39
-
10K
6.21 mi10:46:1941:306:4120:51
6:43
+0:04
15K
9.32 mi11:07:031:02:146:4120:44
6:40
-0:03
20K
12.43 mi11:27:461:22:576:4020:43
6:40
0:00
Half
13.11 mi11:32:221:27:336:414:36
6:45
+0:05
25K
15.53 mi11:48:581:44:096:4216:36
6:51
+0:06
30K
18.64 mi12:10:562:06:076:4621:58
7:04
+0:13
20M
20.00 mi12:20:422:15:536:489:46
7:11
+0:07
21M
21.00 mi12:28:212:23:326:507:39
7:39
+0:28
35K
21.75 mi12:33:452:28:566:515:24
7:13
-0:26
23M
23.00 mi12:42:482:37:596:529:03
7:14
+0:01
24M
24.00 mi12:49:582:45:096:537:10
7:10
-0:04
40K
24.85 mi12:56:042:51:156:536:06
7:08
-0:02
25.2M
25.20 mi12:58:412:53:526:542:37
7:35
+0:27
Finish
26.22 mi13:05:263:00:376:546:45
6:37
-0:58

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

6:37 /mi

Average Pace

6:54 /mi

Slowest Pace

7:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:50:21

94% of race

Time at Steady Pace

10:16

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:53 /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 mi10:25:2820:396:3920:39
6:39
#4985
10K
6.21 mi10:46:1941:306:4120:51
6:43
#5173
15K
9.32 mi11:07:031:02:146:4120:44
6:40
#5028
20K
12.43 mi11:27:461:22:576:4020:43
6:40
#4773
Half
13.11 mi11:32:221:27:336:414:36
6:45
#4810
25K
15.53 mi11:48:581:44:096:4216:36
6:51
#4840
30K
18.64 mi12:10:562:06:076:4621:58
7:04
#4872
20M
20.00 mi12:20:422:15:536:489:46
7:11
#4877
21M
21.00 mi12:28:212:23:326:507:39
7:39
#4892
35K
21.75 mi12:33:452:28:566:515:24
7:13
#4952
23M
23.00 mi12:42:482:37:596:529:03
7:14
#4960
24M
24.00 mi12:49:582:45:096:537:10
7:10
#4984
40K
24.85 mi12:56:042:51:156:536:06
7:08
#4952
25.2M
25.20 mi12:58:412:53:526:542:37
7:35
#4912
Finish
26.22 mi13:05:263:00:376:546:45
6:37
#4824
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi4985465946594833(Top 17%)4507(Top 28%)4507(Top 201%)
10K6.21 mi3.10 mi5173-1884813-1544813-1545431(Top 19%)5015(Top 31%)5015(Top 223%)
15K9.32 mi3.11 mi5028+1454685+1284685+1284833(Top 17%)4507(Top 28%)4507(Top 201%)
20K12.43 mi3.11 mi4773+2554453+2324453+2324154(Top 15%)3896(Top 24%)3896(Top 173%)
Half13.11 mi0.68 mi4810-374482-294482-295570(Top 20%)5090(Top 32%)5090(Top 227%)
25K15.53 mi2.42 mi4840-304500-184500-185229(Top 18%)4791(Top 30%)4791(Top 213%)
30K18.64 mi3.11 mi4872-324506-64506-65136(Top 18%)4648(Top 29%)4648(Top 207%)
20M20.00 mi1.36 mi4877-54508-24508-25112(Top 18%)4561(Top 28%)4561(Top 203%)
21M21.00 mi1.00 mi4892-154511-34511-35357(Top 19%)4627(Top 29%)4627(Top 206%)
35K21.75 mi0.75 mi4952-604551-404551-406654(Top 23%)5473(Top 34%)5473(Top 244%)
23M23.00 mi1.25 mi4960-84547+44547+45017(Top 18%)4324(Top 27%)4324(Top 192%)
24M24.00 mi1.00 mi4984-244558-114558-115578(Top 20%)4641(Top 29%)4641(Top 207%)
40K24.85 mi0.85 mi4952+324523+354523+354643(Top 16%)3948(Top 25%)3948(Top 176%)
25.2M25.20 mi0.35 mi4912+404483+404483+403790(Top 13%)3272(Top 20%)3272(Top 146%)
Finish26.22 mi1.02 mi4824+884407+764407+763457(Top 12%)3026(Top 19%)3026(Top 135%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4833

Males

4507

M40-44

4507

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

5431

Males

5015

M40-44

5015

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4833

Males

4507

M40-44

4507

15K→20K

9.3 - 12.4 mi

Top 15%
×5stories
+106ft-86ft

Overall

4154

Males

3896

M40-44

3896

20K→Half

12.4 - 13.1 mi

Top 20%
×2stories
+19ft-37ft

Overall

5570

Males

5090

M40-44

5090

Half→25K

13.1 - 15.5 mi

Top 18%
×4stories
+66ft-88ft

Overall

5229

Males

4791

M40-44

4791

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

5136

Males

4648

M40-44

4648

30K→20M

18.6 - 20.0 mi

Top 18%
×5stories
+64ft-50ft

Overall

5112

Males

4561

M40-44

4561

20M→21M

20.0 - 21.0 mi

Top 19%
×8stories
+106ft-24ft

Overall

5357

Males

4627

M40-44

4627

21M→35K

21.0 - 21.8 mi

Top 23%
×7stories
+17ft-86ft

Overall

6654

Males

5473

M40-44

5473

35K→23M

21.8 - 23.0 mi

Top 18%
×5stories
+23ft-63ft

Overall

5017

Males

4324

M40-44

4324

23M→24M

23.0 - 24.0 mi

Top 20%
×6stories
+12ft-82ft

Overall

5578

Males

4641

M40-44

4641

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4643

Males

3948

M40-44

3948

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3790

Males

3272

M40-44

3272

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3457

Males

3026

M40-44

3026

Passing Analysis

Category:
Athletes Passed
1371
Passed By
1210
Net Change
+161
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4985
5K → 10K101289-188#4985#5173
10K → 15K21873+145#5173#5028
15K → 20K27520+255#5028#4773
20K → Half1148-37#4773#4810
Half → 25K95125-30#4810#4840
25K → 30K151183-32#4840#4872
30K → 20M7378-5#4872#4877
20M → 21M5772-15#4877#4892
21M → 35K41101-60#4892#4952
35K → 23M8290-8#4952#4960
23M → 24M5377-24#4960#4984
24M → 40K6533+32#4984#4952
40K → 25.2M466+40#4952#4912
25.2M → Finish10315+88#4912#4824
TOTALS13711210+161
📊

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