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BOSTON MARATHON 2025

Arttavit Chalermsaphayakorn

Bib: 31960•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M45-49)
#0 / 2386
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
8:25/mi
26:09
↑ 97↓ 3451.5%
10K· 6.21 mi
9:03/mi
54:15
↑ 79↓ 1380.4%
15K· 9.32 mi
9:04/mi
1:22:26
↑ 67↓ 78
20K· 12.43 mi
9:17/mi
1:51:17
↑ 106↓ 860.1%
Half· 13.11 mi
9:07/mi
1:57:30
↑ 19↓ 370.5%
25K· 15.53 mi
9:32/mi
2:20:37
↑ 66↓ 880.2%
30K· 18.64 mi
9:58/mi
2:51:35
↑ 181↓ 1480.2%
20M
10:05/mi
3:05:17
↑ 64↓ 500.2%
21M
10:40/mi
3:15:57
↑ 106↓ 241.6%
35K· 21.75 mi
10:16/mi
3:23:38
↑ 17↓ 861.7%
23M
10:44/mi
3:37:04
↑ 23↓ 630.6%
24M
10:25/mi
3:47:29
↓ 821.3%
40K· 24.85 mi
10:39/mi
3:56:35
↓ 200.3%
25.2M
11:30/mi
4:00:33
↑ 13↓ 160.2%
Finish· 26.22 mi
9:51/mi
4:10:35
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:30
Pace8:58 /mi
2nd Half
Distance13.11 mi
Time2:13:05
Pace10:09 /mi
📊Positive Split: 13.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:1726:098:2526:09
8:25
-
10K
6.21 mi12:20:2354:158:4428:06
9:03
+0:38
15K
9.32 mi12:48:341:22:268:5128:11
9:04
+0:01
20K
12.43 mi13:17:251:51:178:5728:51
9:17
+0:13
Half
13.11 mi13:23:381:57:308:586:13
9:07
-0:10
25K
15.53 mi13:46:452:20:379:0323:07
9:32
+0:25
30K
18.64 mi14:17:432:51:359:1230:58
9:58
+0:26
20M
20.00 mi14:31:253:05:179:1613:42
10:05
+0:07
21M
21.00 mi14:42:053:15:579:2010:40
10:40
+0:35
35K
21.75 mi14:49:463:23:389:227:41
10:16
-0:24
23M
23.00 mi15:03:123:37:049:2613:26
10:44
+0:28
24M
24.00 mi15:13:373:47:299:2910:25
10:25
-0:19
40K
24.85 mi15:22:433:56:359:319:06
10:39
+0:14
25.2M
25.20 mi15:26:414:00:339:333:58
11:30
+0:51
Finish
26.22 mi15:36:434:10:359:3410:02
9:51
-1:39

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

8:25 /mi

Average Pace

9:34 /mi

Slowest Pace

11:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:20:37

56% of race

Time at Steady Pace

1:02:23

25% of race

Time at Slower Pace

47:35

19% of race

Average Pace: 9:33 /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 mi11:52:1726:098:2526:09
8:25
#19408
10K
6.21 mi12:20:2354:158:4428:06
9:03
#21054
15K
9.32 mi12:48:341:22:268:5128:11
9:04
#21505
20K
12.43 mi13:17:251:51:178:5728:51
9:17
#21725
Half
13.11 mi13:23:381:57:308:586:13
9:07
#21754
25K
15.53 mi13:46:452:20:379:0323:07
9:32
#21793
30K
18.64 mi14:17:432:51:359:1230:58
9:58
#21780
20M
20.00 mi14:31:253:05:179:1613:42
10:05
#21737
21M
21.00 mi14:42:053:15:579:2010:40
10:40
#21654
35K
21.75 mi14:49:463:23:389:227:41
10:16
#21690
23M
23.00 mi15:03:123:37:049:2613:26
10:44
#21749
24M
24.00 mi15:13:373:47:299:2910:25
10:25
#21784
40K
24.85 mi15:22:433:56:359:319:06
10:39
#21800
25.2M
25.20 mi15:26:414:00:339:333:58
11:30
#21801
Finish
26.22 mi15:36:434:10:359:3410:02
9:51
#21809
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi19408122081220822330(Top 79%)13524(Top 84%)13524(Top 567%)
10K6.21 mi3.10 mi21054-164612916-70812916-70822573(Top 79%)13606(Top 84%)13606(Top 570%)
15K9.32 mi3.11 mi21505-45113139-22313139-22322330(Top 79%)13524(Top 84%)13524(Top 567%)
20K12.43 mi3.11 mi21725-22013215-7613215-7622223(Top 78%)13454(Top 84%)13454(Top 564%)
Half13.11 mi0.68 mi21754-2913225-1013225-1022237(Top 78%)13438(Top 83%)13438(Top 563%)
25K15.53 mi2.42 mi21793-3913239-1413239-1421971(Top 77%)13279(Top 82%)13279(Top 557%)
30K18.64 mi3.11 mi21780+1313222+1713222+1721508(Top 76%)12947(Top 80%)12947(Top 543%)
20M20.00 mi1.36 mi21737+4313188+3413188+3421211(Top 75%)12684(Top 79%)12684(Top 532%)
21M21.00 mi1.00 mi21654+8313121+6713121+6720504(Top 72%)12267(Top 76%)12267(Top 514%)
35K21.75 mi0.75 mi21690-3613128-713128-722601(Top 80%)13206(Top 82%)13206(Top 553%)
23M23.00 mi1.25 mi21749-5913118+1013118+1022583(Top 80%)13142(Top 82%)13142(Top 551%)
24M24.00 mi1.00 mi21784-3513106+1213106+1222562(Top 79%)13088(Top 81%)13088(Top 549%)
40K24.85 mi0.85 mi21800-1613090+1613090+1622285(Top 78%)12875(Top 80%)12875(Top 540%)
25.2M25.20 mi0.35 mi21801-113088+213088+222028(Top 78%)12803(Top 79%)12803(Top 537%)
Finish26.22 mi1.02 mi21809-813077+1113077+1122429(Top 79%)12981(Top 81%)12981(Top 544%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21story building
+97ft-345ft

Overall

22330

Males

13524

M45-49

13524

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

22573

Males

13606

M45-49

13606

10K→15K

6.2 - 9.3 mi

Top 79%
×3story building
+67ft-78ft

Overall

22330

Males

13524

M45-49

13524

15K→20K

9.3 - 12.4 mi

Top 78%
×5story building
+106ft-86ft

Overall

22223

Males

13454

M45-49

13454

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

22237

Males

13438

M45-49

13438

Half→25K

13.1 - 15.5 mi

Top 77%
×4story building
+66ft-88ft

Overall

21971

Males

13279

M45-49

13279

25K→30K

15.5 - 18.6 mi

Top 76%
×9story building
+181ft-148ft

Overall

21508

Males

12947

M45-49

12947

30K→20M

18.6 - 20.0 mi

Top 75%
×5story building
+64ft-50ft

Overall

21211

Males

12684

M45-49

12684

20M→21M

20.0 - 21.0 mi

Top 72%
×8story building
+106ft-24ft

Overall

20504

Males

12267

M45-49

12267

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

22601

Males

13206

M45-49

13206

35K→23M

21.8 - 23.0 mi

Top 80%
×5story building
+23ft-63ft

Overall

22583

Males

13142

M45-49

13142

23M→24M

23.0 - 24.0 mi

Top 79%
×6story building
+12ft-82ft

Overall

22562

Males

13088

M45-49

13088

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

22285

Males

12875

M45-49

12875

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

22028

Males

12803

M45-49

12803

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2story building
+22ft-21ft

Overall

22429

Males

12981

M45-49

12981

Passing Analysis

Category:
Athletes Passed
1077
Passed By
3478
Net Change
-2401
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19408
5K → 10K171663-1646#19408#21054
10K → 15K90541-451#21054#21505
15K → 20K132352-220#21505#21725
20K → Half2352-29#21725#21754
Half → 25K137176-39#21754#21793
25K → 30K205192+13#21793#21780
30K → 20M10966+43#21780#21737
20M → 21M12542+83#21737#21654
21M → 35K3470-36#21654#21690
35K → 23M62121-59#21690#21749
23M → 24M3974-35#21749#21784
24M → 40K4561-16#21784#21800
40K → 25.2M2223-1#21800#21801
25.2M → Finish3745-8#21801#21809
TOTALS10773478-2401
📊

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