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BOSTON MARATHON 2025

Neil Chandler

Bib: 4657•M

FL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 8%
Gender (Male)
#0 / 16105
Top 13%
Masters (Masters Men)
#0 / 10463
Top 4%
Division (M50-54)
#0 / 1996
Top 2%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
19:37
Rank: #2507
Start → 5K
19:37 | 6:19/mi
10K· 6.21 mi
39:22
Rank: #2653 (-146)
5K → 10K
19:45 | 6:21/mi
15K· 9.32 mi
58:59
Rank: #2558 (+95)
10K → 15K
19:37 | 6:19/mi
20K· 12.43 mi
1:18:43
Rank: #2457 (+101)
15K → 20K
19:44 | 6:21/mi
Half· 13.11 mi
1:22:57
Rank: #2421 (+36)
20K → Half
4:14 | 6:12/mi
25K· 15.53 mi
1:38:21
Rank: #2348 (+73)
Half → 25K
15:24 | 6:21/mi
30K· 18.64 mi
1:58:34
Rank: #2240 (+108)
25K → 30K
20:13 | 6:30/mi
20M
2:07:34
Rank: #2212 (+28)
30K → 20M
9:00 | 6:37/mi
21M
2:14:36
Rank: #2202 (+10)
20M → 21M
7:02 | 7:02/mi
35K· 21.75 mi
2:19:33
Rank: #2209 (-7)
21M → 35K
4:57 | 6:37/mi
23M
2:28:11
Rank: #2223 (-14)
35K → 23M
8:38 | 6:54/mi
24M
2:34:54
Rank: #2240 (-17)
23M → 24M
6:43 | 6:43/mi
40K· 24.85 mi
2:40:45
Rank: #2245 (-5)
24M → 40K
5:51 | 6:51/mi
25.2M
2:43:16
Rank: #2238 (+7)
40K → 25.2M
2:31 | 7:18/mi
Finish· 26.22 mi
2:49:51
Rank: #2244 (-6)
25.2M → Finish
6:35 | 6:28/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:57
Pace6:20 /mi
2nd Half
Distance13.11 mi
Time1:26:54
Pace6:38 /mi
📊Positive Split: 4.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:3519:376:1919:37
6:19
-
10K
6.21 mi10:43:2039:226:2019:45
6:21
+0:02
15K
9.32 mi11:02:5758:596:2019:37
6:19
-0:02
20K
12.43 mi11:22:411:18:436:2019:44
6:21
+0:02
Half
13.11 mi11:26:551:22:576:204:14
6:12
-0:09
25K
15.53 mi11:42:191:38:216:2015:24
6:21
+0:09
30K
18.64 mi12:02:321:58:346:2220:13
6:30
+0:09
20M
20.00 mi12:11:322:07:346:239:00
6:37
+0:07
21M
21.00 mi12:18:342:14:366:257:02
7:02
+0:25
35K
21.75 mi12:23:312:19:336:254:57
6:37
-0:25
23M
23.00 mi12:32:092:28:116:278:38
6:54
+0:17
24M
24.00 mi12:38:522:34:546:276:43
6:43
-0:11
40K
24.85 mi12:44:432:40:456:285:51
6:51
+0:08
25.2M
25.20 mi12:47:142:43:166:292:31
7:18
+0:27
Finish
26.22 mi12:53:492:49:516:296:35
6:28
-0:50

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

6:12 /mi

Average Pace

6:29 /mi

Slowest Pace

7:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:25:49

86% of race

Time at Steady Pace

24:02

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:29 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:23:3519:376:1919:37
6:19
#2507
10K
6.21 mi10:43:2039:226:2019:45
6:21
#2653
15K
9.32 mi11:02:5758:596:2019:37
6:19
#2558
20K
12.43 mi11:22:411:18:436:2019:44
6:21
#2457
Half
13.11 mi11:26:551:22:576:204:14
6:12
#2421
25K
15.53 mi11:42:191:38:216:2015:24
6:21
#2348
30K
18.64 mi12:02:321:58:346:2220:13
6:30
#2240
20M
20.00 mi12:11:322:07:346:239:00
6:37
#2212
21M
21.00 mi12:18:342:14:366:257:02
7:02
#2202
35K
21.75 mi12:23:312:19:336:254:57
6:37
#2209
23M
23.00 mi12:32:092:28:116:278:38
6:54
#2223
24M
24.00 mi12:38:522:34:546:276:43
6:43
#2240
40K
24.85 mi12:44:432:40:456:285:51
6:51
#2245
25.2M
25.20 mi12:47:142:43:166:292:31
7:18
#2238
Finish
26.22 mi12:53:492:49:516:296:35
6:28
#2244
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi2507238823882405(Top 8%)2295(Top 14%)2295(Top 115%)
10K6.21 mi3.10 mi2653-1462527-1392527-1392768(Top 10%)2636(Top 16%)2636(Top 132%)
15K9.32 mi3.11 mi2558+952438+892438+892405(Top 8%)2295(Top 14%)2295(Top 115%)
20K12.43 mi3.11 mi2457+1012344+942344+942269(Top 8%)2162(Top 13%)2162(Top 108%)
Half13.11 mi0.68 mi2421+362311+332311+331992(Top 7%)1901(Top 12%)1901(Top 95%)
25K15.53 mi2.42 mi2348+732240+712240+712103(Top 7%)2001(Top 12%)2001(Top 100%)
30K18.64 mi3.11 mi2240+1082135+1052135+1052011(Top 7%)1911(Top 12%)1911(Top 96%)
20M20.00 mi1.36 mi2212+282109+262109+262109(Top 7%)1996(Top 12%)1996(Top 100%)
21M21.00 mi1.00 mi2202+102100+92100+92374(Top 8%)2215(Top 14%)2215(Top 111%)
35K21.75 mi0.75 mi2209-72108-82108-83009(Top 11%)2764(Top 17%)2764(Top 138%)
23M23.00 mi1.25 mi2223-142116-82116-83164(Top 11%)2884(Top 18%)2884(Top 144%)
24M24.00 mi1.00 mi2240-172131-152131-153036(Top 11%)2749(Top 17%)2749(Top 138%)
40K24.85 mi0.85 mi2245-52134-32134-33015(Top 11%)2711(Top 17%)2711(Top 136%)
25.2M25.20 mi0.35 mi2238+72125+92125+92456(Top 9%)2190(Top 14%)2190(Top 110%)
Finish26.22 mi1.02 mi2244-62129-42129-42593(Top 9%)2343(Top 15%)2343(Top 117%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2405

Males

2295

M50-54

2295

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2768

Males

2636

M50-54

2636

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2405

Males

2295

M50-54

2295

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2269

Males

2162

M50-54

2162

20K→Half

12.4 - 13.1 mi

Top 7%
×2stories
+19ft-37ft

Overall

1992

Males

1901

M50-54

1901

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

2103

Males

2001

M50-54

2001

25K→30K

15.5 - 18.6 mi

Top 7%
×9stories
+181ft-148ft

Overall

2011

Males

1911

M50-54

1911

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

2109

Males

1996

M50-54

1996

20M→21M

20.0 - 21.0 mi

Top 8%
×8stories
+106ft-24ft

Overall

2374

Males

2215

M50-54

2215

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

3009

Males

2764

M50-54

2764

35K→23M

21.8 - 23.0 mi

Top 11%
×5stories
+23ft-63ft

Overall

3164

Males

2884

M50-54

2884

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

3036

Males

2749

M50-54

2749

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

3015

Males

2711

M50-54

2711

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2456

Males

2190

M50-54

2190

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2stories
+22ft-21ft

Overall

2593

Males

2343

M50-54

2343

Passing Analysis

Category:
Athletes Passed
867
Passed By
604
Net Change
+263
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2507
5K → 10K66212-146#2507#2653
10K → 15K12631+95#2653#2558
15K → 20K13332+101#2558#2457
20K → Half371+36#2457#2421
Half → 25K9118+73#2421#2348
25K → 30K14537+108#2348#2240
30K → 20M4820+28#2240#2212
20M → 21M4838+10#2212#2202
21M → 35K1623-7#2202#2209
35K → 23M4155-14#2209#2223
23M → 24M3350-17#2223#2240
24M → 40K3237-5#2240#2245
40K → 25.2M2114+7#2245#2238
25.2M → Finish3036-6#2238#2244
TOTALS867604+263
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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