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BOSTON MARATHON 2025

Nathan Poundall

Bib: 2683•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 15%
Gender (Male)
#0 / 16105
Top 25%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
6:32/mi
20:18
↑ 97↓ 3451.5%
10K· 6.21 mi
6:36/mi
40:47
↑ 79↓ 1380.4%
15K· 9.32 mi
6:40/mi
1:01:29
↑ 67↓ 78
20K· 12.43 mi
6:42/mi
1:22:18
↑ 106↓ 860.1%
Half· 13.11 mi
6:42/mi
1:26:52
↑ 19↓ 370.5%
25K· 15.53 mi
6:45/mi
1:43:14
↑ 66↓ 880.2%
30K· 18.64 mi
7:05/mi
2:05:15
↑ 181↓ 1480.2%
20M
7:18/mi
2:15:10
↑ 64↓ 500.2%
21M
7:39/mi
2:22:49
↑ 106↓ 241.6%
35K· 21.75 mi
7:02/mi
2:28:05
↑ 17↓ 861.7%
23M
7:06/mi
2:36:58
↑ 23↓ 630.6%
24M
6:46/mi
2:43:44
↓ 821.3%
40K· 24.85 mi
6:51/mi
2:49:35
↓ 200.3%
25.2M
7:18/mi
2:52:06
↑ 13↓ 160.2%
Finish· 26.22 mi
6:38/mi
2:58:52
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:52
Pace6:38 /mi
2nd Half
Distance13.11 mi
Time1:32:00
Pace7:01 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:3620:186:3220:18
6:32
-
10K
6.21 mi10:42:0540:476:3420:29
6:36
+0:04
15K
9.32 mi11:02:471:01:296:3620:42
6:40
+0:04
20K
12.43 mi11:23:361:22:186:3720:49
6:42
+0:02
Half
13.11 mi11:28:101:26:526:384:34
6:42
0:00
25K
15.53 mi11:44:321:43:146:3916:22
6:45
+0:03
30K
18.64 mi12:06:332:05:156:4322:01
7:05
+0:20
20M
20.00 mi12:16:282:15:106:459:55
7:18
+0:13
21M
21.00 mi12:24:072:22:496:487:39
7:39
+0:21
35K
21.75 mi12:29:232:28:056:495:16
7:02
-0:37
23M
23.00 mi12:38:162:36:586:498:53
7:06
+0:04
24M
24.00 mi12:45:022:43:446:496:46
6:46
-0:20
40K
24.85 mi12:50:532:49:356:495:51
6:51
+0:05
25.2M
25.20 mi12:53:242:52:066:502:31
7:18
+0:27
Finish
26.22 mi13:00:102:58:526:506:46
6:38
-0:40

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

6:32 /mi

Average Pace

6:50 /mi

Slowest Pace

7:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:38:47

89% of race

Time at Steady Pace

20:05

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:49 /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 mi10:21:3620:186:3220:18
6:32
#4093
10K
6.21 mi10:42:0540:476:3420:29
6:36
#4234
15K
9.32 mi11:02:471:01:296:3620:42
6:40
#4368
20K
12.43 mi11:23:361:22:186:3720:49
6:42
#4353
Half
13.11 mi11:28:101:26:526:384:34
6:42
#4378
25K
15.53 mi11:44:321:43:146:3916:22
6:45
#4329
30K
18.64 mi12:06:332:05:156:4322:01
7:05
#4476
20M
20.00 mi12:16:282:15:106:459:55
7:18
#4584
21M
21.00 mi12:24:072:22:496:487:39
7:39
#4620
35K
21.75 mi12:29:232:28:056:495:16
7:02
#4631
23M
23.00 mi12:38:162:36:586:498:53
7:06
#4579
24M
24.00 mi12:45:022:43:446:496:46
6:46
#4485
40K
24.85 mi12:50:532:49:356:495:51
6:51
#4400
25.2M
25.20 mi12:53:242:52:066:502:31
7:18
#4348
Finish
26.22 mi13:00:102:58:526:506:46
6:38
#4303
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4093386038604762(Top 17%)4446(Top 28%)4446(Top 79%)
10K6.21 mi3.10 mi4234-1413983-1233983-1234429(Top 16%)4154(Top 26%)4154(Top 74%)
15K9.32 mi3.11 mi4368-1344106-1234106-1234762(Top 17%)4446(Top 28%)4446(Top 79%)
20K12.43 mi3.11 mi4353+154090+164090+164445(Top 16%)4149(Top 26%)4149(Top 74%)
Half13.11 mi0.68 mi4378-254110-204110-205225(Top 18%)4820(Top 30%)4820(Top 85%)
25K15.53 mi2.42 mi4329+494059+514059+514498(Top 16%)4158(Top 26%)4158(Top 74%)
30K18.64 mi3.11 mi4476-1474179-1204179-1205241(Top 18%)4732(Top 29%)4732(Top 84%)
20M20.00 mi1.36 mi4584-1084253-744253-745775(Top 20%)5036(Top 31%)5036(Top 89%)
21M21.00 mi1.00 mi4620-364285-324285-325386(Top 19%)4656(Top 29%)4656(Top 83%)
35K21.75 mi0.75 mi4631-114284+14284+15625(Top 20%)4813(Top 30%)4813(Top 85%)
23M23.00 mi1.25 mi4579+524223+614223+614304(Top 15%)3816(Top 24%)3816(Top 68%)
24M24.00 mi1.00 mi4485+944136+874136+873347(Top 12%)3013(Top 19%)3013(Top 53%)
40K24.85 mi0.85 mi4400+854052+844052+843071(Top 11%)2767(Top 17%)2767(Top 49%)
25.2M25.20 mi0.35 mi4348+524005+474005+472576(Top 9%)2310(Top 14%)2310(Top 41%)
Finish26.22 mi1.02 mi4303+453958+473958+473567(Top 13%)3114(Top 19%)3114(Top 55%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21story building
+97ft-345ft

Overall

4762

Males

4446

M18-39

4446

5K→10K

3.1 - 6.2 mi

Top 16%
×5story building
+79ft-138ft

Overall

4429

Males

4154

M18-39

4154

10K→15K

6.2 - 9.3 mi

Top 17%
×3story building
+67ft-78ft

Overall

4762

Males

4446

M18-39

4446

15K→20K

9.3 - 12.4 mi

Top 16%
×5story building
+106ft-86ft

Overall

4445

Males

4149

M18-39

4149

20K→Half

12.4 - 13.1 mi

Top 18%
×2story building
+19ft-37ft

Overall

5225

Males

4820

M18-39

4820

Half→25K

13.1 - 15.5 mi

Top 16%
×4story building
+66ft-88ft

Overall

4498

Males

4158

M18-39

4158

25K→30K

15.5 - 18.6 mi

Top 18%
×9story building
+181ft-148ft

Overall

5241

Males

4732

M18-39

4732

30K→20M

18.6 - 20.0 mi

Top 20%
×5story building
+64ft-50ft

Overall

5775

Males

5036

M18-39

5036

20M→21M

20.0 - 21.0 mi

Top 19%
×8story building
+106ft-24ft

Overall

5386

Males

4656

M18-39

4656

21M→35K

21.0 - 21.8 mi

Top 20%
×7story building
+17ft-86ft

Overall

5625

Males

4813

M18-39

4813

35K→23M

21.8 - 23.0 mi

Top 15%
×5story building
+23ft-63ft

Overall

4304

Males

3816

M18-39

3816

23M→24M

23.0 - 24.0 mi

Top 12%
×6story building
+12ft-82ft

Overall

3347

Males

3013

M18-39

3013

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

3071

Males

2767

M18-39

2767

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2576

Males

2310

M18-39

2310

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2story building
+22ft-21ft

Overall

3567

Males

3114

M18-39

3114

Passing Analysis

Category:
Athletes Passed
1053
Passed By
1263
Net Change
-210
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4093
5K → 10K87228-141#4093#4234
10K → 15K53187-134#4234#4368
15K → 20K10893+15#4368#4353
20K → Half1136-25#4353#4378
Half → 25K11364+49#4378#4329
25K → 30K105252-147#4329#4476
30K → 20M45153-108#4476#4584
20M → 21M64100-36#4584#4620
21M → 35K3950-11#4620#4631
35K → 23M9846+52#4631#4579
23M → 24M11420+94#4579#4485
24M → 40K938+85#4485#4400
40K → 25.2M531+52#4400#4348
25.2M → Finish7025+45#4348#4303
TOTALS10531263-210
📊

Passing Visuals

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