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BOSTON MARATHON 2025

Lushan Chokalingam

Bib: 31453•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
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
10:01/mi
31:08
↑ 97↓ 3451.5%
10K· 6.21 mi
12:15/mi
1:09:11
↑ 79↓ 1380.4%
15K· 9.32 mi
12:17/mi
1:47:22
↑ 67↓ 78
20K· 12.43 mi
13:10/mi
2:28:17
↑ 106↓ 860.1%
Half· 13.11 mi
11:35/mi
2:36:11
↑ 19↓ 370.5%
25K· 15.53 mi
13:33/mi
3:09:02
↑ 66↓ 880.2%
30K· 18.64 mi
13:55/mi
3:52:16
↑ 181↓ 1480.2%
20M
15:40/mi
4:13:34
↑ 64↓ 500.2%
21M
15:31/mi
4:29:05
↑ 106↓ 241.6%
35K· 21.75 mi
15:02/mi
4:40:20
↑ 17↓ 861.7%
23M
15:44/mi
5:00:02
↑ 23↓ 630.6%
24M
15:34/mi
5:15:36
↓ 821.3%
40K· 24.85 mi
17:13/mi
5:30:19
↓ 200.3%
25.2M
17:30/mi
5:36:21
↑ 13↓ 160.2%
Finish· 26.22 mi
13:41/mi
5:50:18
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:36:11
Pace11:55 /mi
2nd Half
Distance13.11 mi
Time3:14:07
Pace14:48 /mi
📊Positive Split: 24.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:1631:0810:0131:08
10:01
-
10K
6.21 mi11:59:191:09:1111:0838:03
12:15
+2:14
15K
9.32 mi12:37:301:47:2211:3138:11
12:17
+0:02
20K
12.43 mi13:18:252:28:1711:5640:55
13:10
+0:53
Half
13.11 mi13:26:192:36:1111:557:54
11:35
-1:35
25K
15.53 mi13:59:103:09:0212:1032:51
13:33
+1:58
30K
18.64 mi14:42:243:52:1612:2843:14
13:55
+0:22
20M
20.00 mi15:03:424:13:3412:4121:18
15:40
+1:45
21M
21.00 mi15:19:134:29:0512:4915:31
15:31
-0:09
35K
21.75 mi15:30:284:40:2012:5311:15
15:02
-0:29
23M
23.00 mi15:50:105:00:0213:0319:42
15:44
+0:42
24M
24.00 mi16:05:445:15:3613:0915:34
15:34
-0:10
40K
24.85 mi16:20:275:30:1913:1714:43
17:13
+1:39
25.2M
25.20 mi16:26:295:36:2113:216:02
17:30
+0:17
Finish
26.22 mi16:40:265:50:1813:2213:57
13:41
-3:49

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

10:01 /mi

Average Pace

13:22 /mi

Slowest Pace

17:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:16

33% of race

Time at Steady Pace

2:10:57

37% of race

Time at Slower Pace

1:44:05

30% of race

Average Pace: 13:22 /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 mi11:21:1631:0810:0131:08
10:01
#25623
10K
6.21 mi11:59:191:09:1111:0838:03
12:15
#27467
15K
9.32 mi12:37:301:47:2211:3138:11
12:17
#27652
20K
12.43 mi13:18:252:28:1711:5640:55
13:10
#27768
Half
13.11 mi13:26:192:36:1111:557:54
11:35
#27740
25K
15.53 mi13:59:103:09:0212:1032:51
13:33
#27727
30K
18.64 mi14:42:243:52:1612:2843:14
13:55
#27701
20M
20.00 mi15:03:424:13:3412:4121:18
15:40
#27764
21M
21.00 mi15:19:134:29:0512:4915:31
15:31
#27761
35K
21.75 mi15:30:284:40:2012:5311:15
15:02
#27797
23M
23.00 mi15:50:105:00:0213:0319:42
15:44
#27861
24M
24.00 mi16:05:445:15:3613:0915:34
15:34
#27914
40K
24.85 mi16:20:275:30:1913:1714:43
17:13
#27994
25.2M
25.20 mi16:26:295:36:2113:216:02
17:30
#28004
Finish
26.22 mi16:40:265:50:1813:2213:57
13:41
#28018
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi25623150141501427820(Top 98%)15881(Top 99%)15881(Top 281%)
10K6.21 mi3.10 mi27467-184415772-75815772-75828071(Top 99%)15979(Top 99%)15979(Top 283%)
15K9.32 mi3.11 mi27652-18515830-5815830-5827820(Top 98%)15881(Top 99%)15881(Top 281%)
20K12.43 mi3.11 mi27768-11615864-3415864-3427910(Top 98%)15902(Top 99%)15902(Top 282%)
Half13.11 mi0.68 mi27740+2815847+1715847+1727128(Top 96%)15574(Top 97%)15574(Top 276%)
25K15.53 mi2.42 mi27727+1315841+615841+627648(Top 97%)15779(Top 98%)15779(Top 280%)
30K18.64 mi3.11 mi27701+2615824+1715824+1727448(Top 97%)15634(Top 97%)15634(Top 277%)
20M20.00 mi1.36 mi27764-6315839-1515839-1528091(Top 99%)15920(Top 99%)15920(Top 282%)
21M21.00 mi1.00 mi27761+315833+615833+627549(Top 97%)15642(Top 97%)15642(Top 277%)
35K21.75 mi0.75 mi27797-3615842-915842-928076(Top 99%)15899(Top 99%)15899(Top 282%)
23M23.00 mi1.25 mi27861-6415860-1815860-1828108(Top 99%)15908(Top 99%)15908(Top 282%)
24M24.00 mi1.00 mi27914-5315879-1915879-1928157(Top 99%)15927(Top 99%)15927(Top 282%)
40K24.85 mi0.85 mi27994-8015914-3515914-3528262(Top 100%)16011(Top 99%)16011(Top 284%)
25.2M25.20 mi0.35 mi28004-1015918-415918-428148(Top 99%)15919(Top 99%)15919(Top 282%)
Finish26.22 mi1.02 mi28018-1415919-115919-127941(Top 98%)15809(Top 98%)15809(Top 280%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 98%
×21story building
+97ft-345ft

Overall

27820

Males

15881

M18-39

15881

5K→10K

3.1 - 6.2 mi

Top 99%
×5story building
+79ft-138ft

Overall

28071

Males

15979

M18-39

15979

10K→15K

6.2 - 9.3 mi

Top 98%
×3story building
+67ft-78ft

Overall

27820

Males

15881

M18-39

15881

15K→20K

9.3 - 12.4 mi

Top 98%
×5story building
+106ft-86ft

Overall

27910

Males

15902

M18-39

15902

20K→Half

12.4 - 13.1 mi

Top 96%
×2story building
+19ft-37ft

Overall

27128

Males

15574

M18-39

15574

Half→25K

13.1 - 15.5 mi

Top 97%
×4story building
+66ft-88ft

Overall

27648

Males

15779

M18-39

15779

25K→30K

15.5 - 18.6 mi

Top 97%
×9story building
+181ft-148ft

Overall

27448

Males

15634

M18-39

15634

30K→20M

18.6 - 20.0 mi

Top 99%
×5story building
+64ft-50ft

Overall

28091

Males

15920

M18-39

15920

20M→21M

20.0 - 21.0 mi

Top 97%
×8story building
+106ft-24ft

Overall

27549

Males

15642

M18-39

15642

21M→35K

21.0 - 21.8 mi

Top 99%
×7story building
+17ft-86ft

Overall

28076

Males

15899

M18-39

15899

35K→23M

21.8 - 23.0 mi

Top 99%
×5story building
+23ft-63ft

Overall

28108

Males

15908

M18-39

15908

23M→24M

23.0 - 24.0 mi

Top 99%
×6story building
+12ft-82ft

Overall

28157

Males

15927

M18-39

15927

24M→40K

24.0 - 24.9 mi

Top 100%
×1story
+6ft-20ft

Overall

28262

Males

16011

M18-39

16011

40K→25.2M

24.9 - 25.2 mi

Top 99%
×1story
+13ft-16ft

Overall

28148

Males

15919

M18-39

15919

25.2M→Finish

25.2 - 26.2 mi

Top 98%
×2story building
+22ft-21ft

Overall

27941

Males

15809

M18-39

15809

Passing Analysis

Category:
Athletes Passed
284
Passed By
2679
Net Change
-2395
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25623
5K → 10K21846-1844#25623#27467
10K → 15K34219-185#27467#27652
15K → 20K27143-116#27652#27768
20K → Half357+28#27768#27740
Half → 25K6451+13#27740#27727
25K → 30K6337+26#27727#27701
30K → 20M1679-63#27701#27764
20M → 21M2219+3#27764#27761
21M → 35K541-36#27761#27797
35K → 23M468-64#27797#27861
23M → 24M558-53#27861#27914
24M → 40K080-80#27914#27994
40K → 25.2M010-10#27994#28004
25.2M → Finish721-14#28004#28018
TOTALS2842679-2395
📊

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