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BOSTON MARATHON 2025

Nick Greenhalgh

Bib: 6720•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 15%
Gender (Male)
#0 / 16105
Top 24%
Division (M18-39)
#0 / 5642
Top 50%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:08
Rank: #6308
Start → 5K
21:08 | 6:48/mi
10K· 6.21 mi
42:12
Rank: #6214 (+94)
5K → 10K
21:04 | 6:47/mi
15K· 9.32 mi
1:03:05
Rank: #5898 (+316)
10K → 15K
20:53 | 6:43/mi
20K· 12.43 mi
1:23:59
Rank: #5547 (+351)
15K → 20K
20:54 | 6:44/mi
Half· 13.11 mi
1:28:37
Rank: #5562 (-15)
20K → Half
4:38 | 6:47/mi
25K· 15.53 mi
1:45:03
Rank: #5380 (+182)
Half → 25K
16:26 | 6:47/mi
30K· 18.64 mi
2:06:43
Rank: #5128 (+252)
25K → 30K
21:40 | 6:58/mi
20M
2:16:17
Rank: #5042 (+86)
30K → 20M
9:34 | 7:02/mi
21M
2:23:36
Rank: #4922 (+120)
20M → 21M
7:19 | 7:19/mi
35K· 21.75 mi
2:28:33
Rank: #4813 (+109)
21M → 35K
4:57 | 6:37/mi
23M
2:37:00
Rank: #4590 (+223)
35K → 23M
8:27 | 6:45/mi
24M
2:43:39
Rank: #4461 (+129)
23M → 24M
6:39 | 6:39/mi
40K· 24.85 mi
2:49:23
Rank: #4336 (+125)
24M → 40K
5:44 | 6:42/mi
25.2M
2:51:55
Rank: #4290 (+46)
40K → 25.2M
2:32 | 7:21/mi
Finish· 26.22 mi
2:58:42
Rank: #4251 (+39)
25.2M → Finish
6:47 | 6:39/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:37
Pace6:46 /mi
2nd Half
Distance13.11 mi
Time1:30:05
Pace6:52 /mi
📊Positive Split: 1.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:28:1421:086:4821:08
6:48
-
10K
6.21 mi10:49:1842:126:4721:04
6:47
-0:01
15K
9.32 mi11:10:111:03:056:4620:53
6:43
-0:04
20K
12.43 mi11:31:051:23:596:4520:54
6:44
+0:01
Half
13.11 mi11:35:431:28:376:464:38
6:47
+0:03
25K
15.53 mi11:52:091:45:036:4616:26
6:47
0:00
30K
18.64 mi12:13:492:06:436:4821:40
6:58
+0:11
20M
20.00 mi12:23:232:16:176:499:34
7:02
+0:04
21M
21.00 mi12:30:422:23:366:507:19
7:19
+0:17
35K
21.75 mi12:35:392:28:336:504:57
6:37
-0:42
23M
23.00 mi12:44:062:37:006:508:27
6:45
+0:08
24M
24.00 mi12:50:452:43:396:496:39
6:39
-0:06
40K
24.85 mi12:56:292:49:236:495:44
6:42
+0:03
25.2M
25.20 mi12:59:012:51:556:492:32
7:21
+0:39
Finish
26.22 mi13:05:482:58:426:496:47
6:39
-0:42

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

6:49 /mi

Slowest Pace

7:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:48:51

94% of race

Time at Steady Pace

9:51

6% 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 mi10:28:1421:086:4821:08
6:48
#6308
10K
6.21 mi10:49:1842:126:4721:04
6:47
#6214
15K
9.32 mi11:10:111:03:056:4620:53
6:43
#5898
20K
12.43 mi11:31:051:23:596:4520:54
6:44
#5547
Half
13.11 mi11:35:431:28:376:464:38
6:47
#5562
25K
15.53 mi11:52:091:45:036:4616:26
6:47
#5380
30K
18.64 mi12:13:492:06:436:4821:40
6:58
#5128
20M
20.00 mi12:23:232:16:176:499:34
7:02
#5042
21M
21.00 mi12:30:422:23:366:507:19
7:19
#4922
35K
21.75 mi12:35:392:28:336:504:57
6:37
#4813
23M
23.00 mi12:44:062:37:006:508:27
6:45
#4590
24M
24.00 mi12:50:452:43:396:496:39
6:39
#4461
40K
24.85 mi12:56:292:49:236:495:44
6:42
#4336
25.2M
25.20 mi12:59:012:51:556:492:32
7:21
#4290
Finish
26.22 mi13:05:482:58:426:496:47
6:39
#4251
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi6308576357635269(Top 19%)4868(Top 30%)4868(Top 86%)
10K6.21 mi3.10 mi6214+945690+735690+736150(Top 22%)5602(Top 35%)5602(Top 99%)
15K9.32 mi3.11 mi5898+3165410+2805410+2805269(Top 19%)4868(Top 30%)4868(Top 86%)
20K12.43 mi3.11 mi5547+3515109+3015109+3014658(Top 16%)4320(Top 27%)4320(Top 77%)
Half13.11 mi0.68 mi5562-155115-65115-65975(Top 21%)5396(Top 34%)5396(Top 96%)
25K15.53 mi2.42 mi5380+1824953+1624953+1624688(Top 17%)4317(Top 27%)4317(Top 77%)
30K18.64 mi3.11 mi5128+2524720+2334720+2334531(Top 16%)4139(Top 26%)4139(Top 73%)
20M20.00 mi1.36 mi5042+864643+774643+774325(Top 15%)3940(Top 24%)3940(Top 70%)
21M21.00 mi1.00 mi4922+1204535+1084535+1083688(Top 13%)3370(Top 21%)3370(Top 60%)
35K21.75 mi0.75 mi4813+1094437+984437+983054(Top 11%)2809(Top 17%)2809(Top 50%)
23M23.00 mi1.25 mi4590+2234233+2044233+2042467(Top 9%)2286(Top 14%)2286(Top 41%)
24M24.00 mi1.00 mi4461+1294115+1184115+1182717(Top 10%)2491(Top 15%)2491(Top 44%)
40K24.85 mi0.85 mi4336+1253997+1183997+1182393(Top 8%)2190(Top 14%)2190(Top 39%)
25.2M25.20 mi0.35 mi4290+463954+433954+432737(Top 10%)2439(Top 15%)2439(Top 43%)
Finish26.22 mi1.02 mi4251+393912+423912+423631(Top 13%)3157(Top 20%)3157(Top 56%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5269

Males

4868

M18-39

4868

5K→10K

3.1 - 6.2 mi

Top 22%
×5stories
+79ft-138ft

Overall

6150

Males

5602

M18-39

5602

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5269

Males

4868

M18-39

4868

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4658

Males

4320

M18-39

4320

20K→Half

12.4 - 13.1 mi

Top 21%
×2stories
+19ft-37ft

Overall

5975

Males

5396

M18-39

5396

Half→25K

13.1 - 15.5 mi

Top 17%
×4stories
+66ft-88ft

Overall

4688

Males

4317

M18-39

4317

25K→30K

15.5 - 18.6 mi

Top 16%
×9stories
+181ft-148ft

Overall

4531

Males

4139

M18-39

4139

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

4325

Males

3940

M18-39

3940

20M→21M

20.0 - 21.0 mi

Top 13%
×8stories
+106ft-24ft

Overall

3688

Males

3370

M18-39

3370

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

3054

Males

2809

M18-39

2809

35K→23M

21.8 - 23.0 mi

Top 9%
×5stories
+23ft-63ft

Overall

2467

Males

2286

M18-39

2286

23M→24M

23.0 - 24.0 mi

Top 10%
×6stories
+12ft-82ft

Overall

2717

Males

2491

M18-39

2491

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2393

Males

2190

M18-39

2190

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2737

Males

2439

M18-39

2439

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2stories
+22ft-21ft

Overall

3631

Males

3157

M18-39

3157

Passing Analysis

Category:
Athletes Passed
2442
Passed By
385
Net Change
+2057
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6308
5K → 10K234140+94#6308#6214
10K → 15K34125+316#6214#5898
15K → 20K36615+351#5898#5547
20K → Half2136-15#5547#5562
Half → 25K20927+182#5562#5380
25K → 30K30149+252#5380#5128
30K → 20M11529+86#5128#5042
20M → 21M13515+120#5042#4922
21M → 35K1134+109#4922#4813
35K → 23M2263+223#4813#4590
23M → 24M13910+129#4590#4461
24M → 40K1272+125#4461#4336
40K → 25.2M471+46#4336#4290
25.2M → Finish6829+39#4290#4251
TOTALS2442385+2057
📊

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