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BOSTON MARATHON 2025

Nathan Safe

Bib: 5086 M AU

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 15%
Gender (Male)
#0 / 16105
Top 24%
Masters (Masters Men)
#0 / 10463
Top 10%
Division (M40-44)
#0 / 2247
Top 27%
Race Day Weather
50°/40°F
broken clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
6:33/mi
20:21
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
6:38/mi
40:59
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
6:48/mi
1:02:08
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
6:37/mi
1:22:42
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
6:30/mi
1:27:08
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:08/mi
1:44:26
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
6:55/mi
2:05:56
↑ 181↓ 1480.2%
138 ft elev
20M
6:59/mi
2:15:26
↑ 64↓ 500.2%
148 ft elev
21M
7:15/mi
2:22:41
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
6:49/mi
2:27:47
↑ 17↓ 861.7%
156 ft elev
23M
7:01/mi
2:36:34
↑ 23↓ 630.6%
116 ft elev
24M
6:50/mi
2:43:24
↓ 821.3%
34 ft elev
40K· 24.85 mi
6:49/mi
2:49:14
↓ 200.3%
20 ft elev
25.2M
7:15/mi
2:51:44
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
6:33/mi
2:58:24
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:27:086:39 /mi⚡ faster
2nd Half
1:31:166:58 /mi+4.7%
Positive split — 4.7% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
20:216:333.11 mi20:21
6:33
-
10K
40:596:363.10 mi20:38
6:38
+0:05
15K
1:02:086:403.11 mi21:09
6:48
+0:10
20K
1:22:426:393.11 mi20:34
6:37
-0:11
Half(13.11 mi)
1:27:086:390.68 mi4:26
6:30
-0:07
25K
1:44:266:432.42 mi17:18
7:08
+0:38
30K
2:05:566:453.11 mi21:30
6:55
-0:13
20M
2:15:266:461.36 mi9:30
6:59
+0:04
21M
2:22:416:481.00 mi7:15
7:15
+0:16
35K
2:27:476:480.75 mi5:06
6:49
-0:26
23M
2:36:346:481.25 mi8:47
7:01
+0:12
24M
2:43:246:491.00 mi6:50
6:50
-0:11
40K
2:49:146:490.85 mi5:50
6:49
-0:01
25.2M
2:51:446:490.35 mi2:30
7:15
+0:26
Finish(26.22 mi)
2:58:246:491.02 mi6:40
6:33
-0:42
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

6:30 /mi

Average Pace

6:49 /mi

Slowest Pace

7:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:48:39

95% of race

Time at Steady Pace

9:45

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:48 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi419539473947613155615561
10K3.10 mi4459-2644192-2454192-245478744774477
15K3.11 mi4921-4624590-3984590-398613155615561
20K3.11 mi4584+3374288+3024288+302382436063606
Half(13.11 mi)0.68 mi4535+494246+424246+42364334433443
25K2.42 mi4997-4624636-3904636-390717762366236
30K3.11 mi4793+2044435+2014435+201421038643864
20M1.36 mi4711+824366+694366+69403436943694
21M1.00 mi4567+1444237+1294237+129336330853085
35K0.75 mi4522+454190+474190+47417937323732
23M1.25 mi4439+834107+834107+83382334363436
24M1.00 mi4378+614043+644043+64368832843284
40K0.85 mi4298+803964+793964+79295226612661
25.2M0.35 mi4233+653905+593905+59232820812081
Finish(26.22 mi)1.02 mi4145+883819+863819+86301426822682

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21story building
+97ft-345ft

Overall

6131

Males

5561

M40-44

5561

5K→10K

3.1 - 6.2 mi

Top 17%
×5story building
+79ft-138ft

Overall

4787

Males

4477

M40-44

4477

10K→15K

6.2 - 9.3 mi

Top 22%
×3story building
+67ft-78ft

Overall

6131

Males

5561

M40-44

5561

15K→20K

9.3 - 12.4 mi

Top 13%
×5story building
+106ft-86ft

Overall

3824

Males

3606

M40-44

3606

20K→Half

12.4 - 13.1 mi

Top 13%
×2story building
+19ft-37ft

Overall

3643

Males

3443

M40-44

3443

Half→25K

13.1 - 15.5 mi

Top 25%
×4story building
+66ft-88ft

Overall

7177

Males

6236

M40-44

6236

25K→30K

15.5 - 18.6 mi

Top 15%
×9story building
+181ft-148ft

Overall

4210

Males

3864

M40-44

3864

30K→20M

18.6 - 20.0 mi

Top 14%
×5story building
+64ft-50ft

Overall

4034

Males

3694

M40-44

3694

20M→21M

20.0 - 21.0 mi

Top 12%
×8story building
+106ft-24ft

Overall

3363

Males

3085

M40-44

3085

21M→35K

21.0 - 21.8 mi

Top 15%
×7story building
+17ft-86ft

Overall

4179

Males

3732

M40-44

3732

35K→23M

21.8 - 23.0 mi

Top 13%
×5story building
+23ft-63ft

Overall

3823

Males

3436

M40-44

3436

23M→24M

23.0 - 24.0 mi

Top 13%
×6story building
+12ft-82ft

Overall

3688

Males

3284

M40-44

3284

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2952

Males

2661

M40-44

2661

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2328

Males

2081

M40-44

2081

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2story building
+22ft-21ft

Overall

3014

Males

2682

M40-44

2682

Passing Analysis

Category:
▲Net Change
+0
0 passed by0 passed
SegmentMovementRank
Start → 5K-#4195
5K → 10K
31450-264
#4195 → #4459
10K → 15K
48422-462
#4459 → #4921
15K → 20K
9346+337
#4921 → #4584
20K → Half
352+49
#4584 → #4535
Half → 25K
49937-462
#4535 → #4997
25K → 30K
58262+204
#4997 → #4793
30K → 20M
34116+82
#4793 → #4711
20M → 21M
11155+144
#4711 → #4567
21M → 35K
1863+45
#4567 → #4522
35K → 23M
25108+83
#4522 → #4439
23M → 24M
2586+61
#4439 → #4378
24M → 40K
1292+80
#4378 → #4298
40K → 25.2M
368+65
#4298 → #4233
25.2M → Finish
1199+88
#4233 → #4145
TOTALS
15061556+50
#4195 → #4145

Passing Visualized

Category:
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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