Boston Marathon logo
BOSTON MARATHON 2025

Supachai Parchariyanon

Bib: 16597•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M40-44)
#0 / 2247
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
9:58/mi
30:58
↑ 97↓ 3451.5%
10K· 6.21 mi
10:13/mi
1:02:44
↑ 79↓ 1380.4%
15K· 9.32 mi
10:29/mi
1:35:18
↑ 67↓ 78
20K· 12.43 mi
10:30/mi
2:07:55
↑ 106↓ 860.1%
Half· 13.11 mi
10:19/mi
2:14:57
↑ 19↓ 370.5%
25K· 15.53 mi
10:45/mi
2:41:02
↑ 66↓ 880.2%
30K· 18.64 mi
11:46/mi
3:17:34
↑ 181↓ 1480.2%
20M
11:44/mi
3:33:31
↑ 64↓ 500.2%
21M
12:05/mi
3:45:36
↑ 106↓ 241.6%
35K· 21.75 mi
11:07/mi
3:53:55
↑ 17↓ 861.7%
23M
11:58/mi
4:08:54
↑ 23↓ 630.6%
24M
12:22/mi
4:21:16
↓ 821.3%
40K· 24.85 mi
12:00/mi
4:31:32
↓ 200.3%
25.2M
13:06/mi
4:36:03
↑ 13↓ 160.2%
Finish· 26.22 mi
10:54/mi
4:47:09
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:14:57
Pace10:18 /mi
2nd Half
Distance13.11 mi
Time2:32:12
Pace11:37 /mi
📊Positive Split: 12.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:04:2530:589:5830:58
9:58
-
10K
6.21 mi11:36:111:02:4410:0631:46
10:13
+0:15
15K
9.32 mi12:08:451:35:1810:1332:34
10:29
+0:16
20K
12.43 mi12:41:222:07:5510:1832:37
10:30
+0:01
Half
13.11 mi12:48:242:14:5710:187:02
10:19
-0:11
25K
15.53 mi13:14:292:41:0210:2226:05
10:45
+0:26
30K
18.64 mi13:51:013:17:3410:3636:32
11:46
+1:01
20M
20.00 mi14:06:583:33:3110:4115:57
11:44
-0:02
21M
21.00 mi14:19:033:45:3610:4512:05
12:05
+0:21
35K
21.75 mi14:27:223:53:5510:458:19
11:07
-0:58
23M
23.00 mi14:42:214:08:5410:4914:59
11:58
+0:51
24M
24.00 mi14:54:434:21:1610:5312:22
12:22
+0:24
40K
24.85 mi15:04:594:31:3210:5510:16
12:00
-0:22
25.2M
25.20 mi15:09:304:36:0310:574:31
13:06
+1:06
Finish
26.22 mi15:20:364:47:0910:5811:06
10:54
-2:12

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

9:58 /mi

Average Pace

10:58 /mi

Slowest Pace

13:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:14:57

47% of race

Time at Steady Pace

45:30

16% of race

Time at Slower Pace

1:46:42

37% of race

Average Pace: 10:57 /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 mi11:04:2530:589:5830:58
9:58
#25498
10K
6.21 mi11:36:111:02:4410:0631:46
10:13
#25637
15K
9.32 mi12:08:451:35:1810:1332:34
10:29
#25775
20K
12.43 mi12:41:222:07:5510:1832:37
10:30
#25594
Half
13.11 mi12:48:242:14:5710:187:02
10:19
#25594
25K
15.53 mi13:14:292:41:0210:2226:05
10:45
#25447
30K
18.64 mi13:51:013:17:3410:3636:32
11:46
#25406
20M
20.00 mi14:06:583:33:3110:4115:57
11:44
#25371
21M
21.00 mi14:19:033:45:3610:4512:05
12:05
#25291
35K
21.75 mi14:27:223:53:5510:458:19
11:07
#25272
23M
23.00 mi14:42:214:08:5410:4914:59
11:58
#25263
24M
24.00 mi14:54:434:21:1610:5312:22
12:22
#25303
40K
24.85 mi15:04:594:31:3210:5510:16
12:00
#25299
25.2M
25.20 mi15:09:304:36:0310:574:31
13:06
#25297
Finish
26.22 mi15:20:364:47:0910:5811:06
10:54
#25305
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi25498149561495625901(Top 91%)15094(Top 94%)15094(Top 672%)
10K6.21 mi3.10 mi25637-13914998-4214998-4225779(Top 91%)15038(Top 93%)15038(Top 669%)
15K9.32 mi3.11 mi25775-13815057-5915057-5925901(Top 91%)15094(Top 94%)15094(Top 672%)
20K12.43 mi3.11 mi25594+18114970+8714970+8725192(Top 89%)14758(Top 92%)14758(Top 657%)
Half13.11 mi0.68 mi2559414971-114971-125460(Top 90%)14864(Top 92%)14864(Top 662%)
25K15.53 mi2.42 mi25447+14714888+8314888+8324823(Top 87%)14569(Top 90%)14569(Top 648%)
30K18.64 mi3.11 mi25406+4114835+5314835+5325235(Top 89%)14647(Top 91%)14647(Top 652%)
20M20.00 mi1.36 mi25371+3514805+3014805+3024894(Top 88%)14413(Top 89%)14413(Top 641%)
21M21.00 mi1.00 mi25291+8014754+5114754+5123726(Top 84%)13783(Top 86%)13783(Top 613%)
35K21.75 mi0.75 mi25272+1914741+1314741+1324448(Top 86%)14077(Top 87%)14077(Top 626%)
23M23.00 mi1.25 mi25263+914725+1614725+1625066(Top 88%)14363(Top 89%)14363(Top 639%)
24M24.00 mi1.00 mi25303-4014731-614731-626142(Top 92%)14875(Top 92%)14875(Top 662%)
40K24.85 mi0.85 mi25299+414723+814723+824926(Top 88%)14221(Top 88%)14221(Top 633%)
25.2M25.20 mi0.35 mi25297+214720+314720+325162(Top 89%)14316(Top 89%)14316(Top 637%)
Finish26.22 mi1.02 mi25305-814716+414716+425146(Top 89%)14358(Top 89%)14358(Top 639%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 91%
×21story building
+97ft-345ft

Overall

25901

Males

15094

M40-44

15094

5K→10K

3.1 - 6.2 mi

Top 91%
×5story building
+79ft-138ft

Overall

25779

Males

15038

M40-44

15038

10K→15K

6.2 - 9.3 mi

Top 91%
×3story building
+67ft-78ft

Overall

25901

Males

15094

M40-44

15094

15K→20K

9.3 - 12.4 mi

Top 89%
×5story building
+106ft-86ft

Overall

25192

Males

14758

M40-44

14758

20K→Half

12.4 - 13.1 mi

Top 90%
×2story building
+19ft-37ft

Overall

25460

Males

14864

M40-44

14864

Half→25K

13.1 - 15.5 mi

Top 87%
×4story building
+66ft-88ft

Overall

24823

Males

14569

M40-44

14569

25K→30K

15.5 - 18.6 mi

Top 89%
×9story building
+181ft-148ft

Overall

25235

Males

14647

M40-44

14647

30K→20M

18.6 - 20.0 mi

Top 88%
×5story building
+64ft-50ft

Overall

24894

Males

14413

M40-44

14413

20M→21M

20.0 - 21.0 mi

Top 84%
×8story building
+106ft-24ft

Overall

23726

Males

13783

M40-44

13783

21M→35K

21.0 - 21.8 mi

Top 86%
×7story building
+17ft-86ft

Overall

24448

Males

14077

M40-44

14077

35K→23M

21.8 - 23.0 mi

Top 88%
×5story building
+23ft-63ft

Overall

25066

Males

14363

M40-44

14363

23M→24M

23.0 - 24.0 mi

Top 92%
×6story building
+12ft-82ft

Overall

26142

Males

14875

M40-44

14875

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

24926

Males

14221

M40-44

14221

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

25162

Males

14316

M40-44

14316

25.2M→Finish

25.2 - 26.2 mi

Top 89%
×2story building
+22ft-21ft

Overall

25146

Males

14358

M40-44

14358

Passing Analysis

Category:
Athletes Passed
1134
Passed By
941
Net Change
+193
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25498
5K → 10K145284-139#25498#25637
10K → 15K81219-138#25637#25775
15K → 20K22241+181#25775#25594
20K → Half21210#25594#25594
Half → 25K18336+147#25594#25447
25K → 30K13998+41#25447#25406
30K → 20M7338+35#25406#25371
20M → 21M9414+80#25371#25291
21M → 35K3718+19#25291#25272
35K → 23M4233+9#25272#25263
23M → 24M3171-40#25263#25303
24M → 40K2622+4#25303#25299
40K → 25.2M1513+2#25299#25297
25.2M → Finish2533-8#25297#25305
TOTALS1134941+193
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing