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BOSTON MARATHON 2025

John Chinchen

Bib: 5125•M

AR

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 6%
Gender (Male)
#0 / 16105
Top 10%
Division (M18-39)
#0 / 5642
Top 23%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:32
Rank: #2373
Start → 5K
6:17/mi
19:32 split
10K· 6.21 mi
39:11
Rank: #2452 (-79)
5K → 10K
6:19/mi
19:39 split
15K· 9.32 mi
58:38
Rank: #2320 (+132)
10K → 15K
6:16/mi
19:27 split
20K· 12.43 mi
1:18:17
Rank: #2258 (+62)
15K → 20K
6:19/mi
19:39 split
Half· 13.11 mi
1:22:36
Rank: #2276 (-18)
20K → Half
6:20/mi
4:19 split
25K· 15.53 mi
1:37:48
Rank: #2153 (+123)
Half → 25K
6:16/mi
15:12 split
30K· 18.64 mi
1:57:51
Rank: #2054 (+99)
25K → 30K
6:27/mi
20:03 split
20M
2:06:51
Rank: #2033 (+21)
30K → 20M
6:37/mi
9:00 split
21M
2:13:45
Rank: #2006 (+27)
20M → 21M
6:54/mi
6:54 split
35K· 21.75 mi
2:18:27
Rank: #1960 (+46)
21M → 35K
6:17/mi
4:42 split
23M
2:26:27
Rank: #1860 (+100)
35K → 23M
6:23/mi
8:00 split
24M
2:32:40
Rank: #1798 (+62)
23M → 24M
6:13/mi
6:13 split
40K· 24.85 mi
2:38:09
Rank: #1751 (+47)
24M → 40K
6:25/mi
5:29 split
25.2M
2:40:37
Rank: #1738 (+13)
40K → 25.2M
7:09/mi
2:28 split
Finish· 26.22 mi
2:46:43
Rank: #1665 (+73)
25.2M → Finish
5:59/mi
6:06 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:36
Pace6:18 /mi
2nd Half
Distance13.11 mi
Time1:24:07
Pace6:25 /mi
📊Positive Split: 1.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:0319:326:1719:32
6:17
-
10K
6.21 mi10:43:4239:116:1819:39
6:19
+0:02
15K
9.32 mi11:03:0958:386:1719:27
6:16
-0:03
20K
12.43 mi11:22:481:18:176:1819:39
6:19
+0:03
Half
13.11 mi11:27:071:22:366:184:19
6:20
+0:01
25K
15.53 mi11:42:191:37:486:1815:12
6:16
-0:04
30K
18.64 mi12:02:221:57:516:1920:03
6:27
+0:11
20M
20.00 mi12:11:222:06:516:219:00
6:37
+0:10
21M
21.00 mi12:18:162:13:456:226:54
6:54
+0:17
35K
21.75 mi12:22:582:18:276:224:42
6:17
-0:37
23M
23.00 mi12:30:582:26:276:228:00
6:23
+0:06
24M
24.00 mi12:37:112:32:406:226:13
6:13
-0:10
40K
24.85 mi12:42:402:38:096:225:29
6:25
+0:12
25.2M
25.20 mi12:45:082:40:376:222:28
7:09
+0:44
Finish
26.22 mi12:51:142:46:436:226:06
5:59
-1:10

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

5:59 /mi

Average Pace

6:22 /mi

Slowest Pace

7:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:28:21

89% of race

Time at Steady Pace

15:54

10% of race

Time at Slower Pace

2:28

1% of race

Average Pace: 6:22 /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 mi10:24:0319:326:1719:32
6:17
#2373
10K
6.21 mi10:43:4239:116:1819:39
6:19
#2452
15K
9.32 mi11:03:0958:386:1719:27
6:16
#2320
20K
12.43 mi11:22:481:18:176:1819:39
6:19
#2258
Half
13.11 mi11:27:071:22:366:184:19
6:20
#2276
25K
15.53 mi11:42:191:37:486:1815:12
6:16
#2153
30K
18.64 mi12:02:221:57:516:1920:03
6:27
#2054
20M
20.00 mi12:11:222:06:516:219:00
6:37
#2033
21M
21.00 mi12:18:162:13:456:226:54
6:54
#2006
35K
21.75 mi12:22:582:18:276:224:42
6:17
#1960
23M
23.00 mi12:30:582:26:276:228:00
6:23
#1860
24M
24.00 mi12:37:112:32:406:226:13
6:13
#1798
40K
24.85 mi12:42:402:38:096:225:29
6:25
#1751
25.2M
25.20 mi12:45:082:40:376:222:28
7:09
#1738
Finish
26.22 mi12:51:142:46:436:226:06
5:59
#1665
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2373226222622156(Top 8%)2058(Top 13%)2058(Top 36%)
10K6.21 mi3.10 mi2452-792337-752337-752568(Top 9%)2452(Top 15%)2452(Top 43%)
15K9.32 mi3.11 mi2320+1322215+1222215+1222156(Top 8%)2058(Top 13%)2058(Top 36%)
20K12.43 mi3.11 mi2258+622159+562159+562123(Top 7%)2024(Top 13%)2024(Top 36%)
Half13.11 mi0.68 mi2276-182175-162175-162668(Top 9%)2551(Top 16%)2551(Top 45%)
25K15.53 mi2.42 mi2153+1232054+1212054+1211738(Top 6%)1651(Top 10%)1651(Top 29%)
30K18.64 mi3.11 mi2054+991958+961958+961790(Top 6%)1701(Top 11%)1701(Top 30%)
20M20.00 mi1.36 mi2033+211937+211937+212128(Top 7%)2015(Top 13%)2015(Top 36%)
21M21.00 mi1.00 mi2006+271909+281909+281890(Top 7%)1781(Top 11%)1781(Top 32%)
35K21.75 mi0.75 mi1960+461863+461863+461548(Top 5%)1458(Top 9%)1458(Top 26%)
23M23.00 mi1.25 mi1860+1001764+991764+991108(Top 4%)1048(Top 7%)1048(Top 19%)
24M24.00 mi1.00 mi1798+621703+611703+611087(Top 4%)1023(Top 6%)1023(Top 18%)
40K24.85 mi0.85 mi1751+471658+451658+451308(Top 5%)1215(Top 8%)1215(Top 22%)
25.2M25.20 mi0.35 mi1738+131645+131645+131989(Top 7%)1802(Top 11%)1802(Top 32%)
Finish26.22 mi1.02 mi1665+731575+701575+70891(Top 3%)840(Top 5%)840(Top 15%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21story building
+97ft-345ft

Overall

2156

Males

2058

M18-39

2058

5K→10K

3.1 - 6.2 mi

Top 9%
×5story building
+79ft-138ft

Overall

2568

Males

2452

M18-39

2452

10K→15K

6.2 - 9.3 mi

Top 8%
×3story building
+67ft-78ft

Overall

2156

Males

2058

M18-39

2058

15K→20K

9.3 - 12.4 mi

Top 7%
×5story building
+106ft-86ft

Overall

2123

Males

2024

M18-39

2024

20K→Half

12.4 - 13.1 mi

Top 9%
×2story building
+19ft-37ft

Overall

2668

Males

2551

M18-39

2551

Half→25K

13.1 - 15.5 mi

Top 6%
×4story building
+66ft-88ft

Overall

1738

Males

1651

M18-39

1651

25K→30K

15.5 - 18.6 mi

Top 6%
×9story building
+181ft-148ft

Overall

1790

Males

1701

M18-39

1701

30K→20M

18.6 - 20.0 mi

Top 7%
×5story building
+64ft-50ft

Overall

2128

Males

2015

M18-39

2015

20M→21M

20.0 - 21.0 mi

Top 7%
×8story building
+106ft-24ft

Overall

1890

Males

1781

M18-39

1781

21M→35K

21.0 - 21.8 mi

Top 5%
×7story building
+17ft-86ft

Overall

1548

Males

1458

M18-39

1458

35K→23M

21.8 - 23.0 mi

Top 4%
×5story building
+23ft-63ft

Overall

1108

Males

1048

M18-39

1048

23M→24M

23.0 - 24.0 mi

Top 4%
×6story building
+12ft-82ft

Overall

1087

Males

1023

M18-39

1023

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1308

Males

1215

M18-39

1215

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1989

Males

1802

M18-39

1802

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2story building
+22ft-21ft

Overall

891

Males

840

M18-39

840

Passing Analysis

Category:
Athletes Passed
1062
Passed By
354
Net Change
+708
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2373
5K → 10K73152-79#2373#2452
10K → 15K15624+132#2452#2320
15K → 20K10543+62#2320#2258
20K → Half422-18#2258#2276
Half → 25K1274+123#2276#2153
25K → 30K12122+99#2153#2054
30K → 20M5332+21#2054#2033
20M → 21M4417+27#2033#2006
21M → 35K559+46#2006#1960
35K → 23M1066+100#1960#1860
23M → 24M664+62#1860#1798
24M → 40K5710+47#1798#1751
40K → 25.2M196+13#1751#1738
25.2M → Finish763+73#1738#1665
TOTALS1062354+708
📊

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