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BOSTON MARATHON 2025

Tanu Somboonvechakarn

Bib: 1959•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 8%
Gender (Male)
#0 / 16105
Top 13%
Division (M18-39)
#0 / 5642
Top 31%
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
6:06/mi
18:58
↑ 97↓ 3451.5%
10K· 6.21 mi
6:10/mi
38:09
↑ 79↓ 1380.4%
15K· 9.32 mi
6:15/mi
57:33
↑ 67↓ 78
20K· 12.43 mi
6:26/mi
1:17:33
↑ 106↓ 860.1%
Half· 13.11 mi
6:30/mi
1:21:59
↑ 19↓ 370.5%
25K· 15.53 mi
6:40/mi
1:38:09
↑ 66↓ 880.2%
30K· 18.64 mi
6:36/mi
1:58:39
↑ 181↓ 1480.2%
20M
6:45/mi
2:07:50
↑ 64↓ 500.2%
21M
6:55/mi
2:14:45
↑ 106↓ 241.6%
35K· 21.75 mi
6:55/mi
2:19:55
↑ 17↓ 861.7%
23M
6:41/mi
2:28:17
↑ 23↓ 630.6%
24M
6:43/mi
2:35:00
↓ 821.3%
40K· 24.85 mi
6:48/mi
2:40:49
↓ 200.3%
25.2M
7:12/mi
2:43:18
↑ 13↓ 160.2%
Finish· 26.22 mi
6:22/mi
2:49:47
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:21:59
Pace6:15 /mi
2nd Half
Distance13.11 mi
Time1:27:48
Pace6:42 /mi
📊Positive Split: 7.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:3218:586:0618:58
6:06
-
10K
6.21 mi10:38:4338:096:0819:11
6:10
+0:04
15K
9.32 mi10:58:0757:336:1019:24
6:15
+0:05
20K
12.43 mi11:18:071:17:336:1420:00
6:26
+0:11
Half
13.11 mi11:22:331:21:596:154:26
6:30
+0:04
25K
15.53 mi11:38:431:38:096:1916:10
6:40
+0:10
30K
18.64 mi11:59:131:58:396:2220:30
6:36
-0:04
20M
20.00 mi12:08:242:07:506:239:11
6:45
+0:09
21M
21.00 mi12:15:192:14:456:256:55
6:55
+0:10
35K
21.75 mi12:20:292:19:556:265:10
6:55
0:00
23M
23.00 mi12:28:512:28:176:278:22
6:41
-0:14
24M
24.00 mi12:35:342:35:006:286:43
6:43
+0:02
40K
24.85 mi12:41:232:40:496:285:49
6:48
+0:05
25.2M
25.20 mi12:43:522:43:186:292:29
7:12
+0:24
Finish
26.22 mi12:50:212:49:476:296:29
6:22
-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

6:06 /mi

Average Pace

6:29 /mi

Slowest Pace

7:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:13:30

79% of race

Time at Steady Pace

33:48

20% of race

Time at Slower Pace

2:29

1% 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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:19:3218:586:0618:58
6:06
#1446
10K
6.21 mi10:38:4338:096:0819:11
6:10
#1591
15K
9.32 mi10:58:0757:336:1019:24
6:15
#1738
20K
12.43 mi11:18:071:17:336:1420:00
6:26
#1951
Half
13.11 mi11:22:331:21:596:154:26
6:30
#2024
25K
15.53 mi11:38:431:38:096:1916:10
6:40
#2279
30K
18.64 mi11:59:131:58:396:2220:30
6:36
#2262
20M
20.00 mi12:08:242:07:506:239:11
6:45
#2268
21M
21.00 mi12:15:192:14:456:256:55
6:55
#2226
35K
21.75 mi12:20:292:19:556:265:10
6:55
#2291
23M
23.00 mi12:28:512:28:176:278:22
6:41
#2241
24M
24.00 mi12:35:342:35:006:286:43
6:43
#2262
40K
24.85 mi12:41:232:40:496:285:49
6:48
#2263
25.2M
25.20 mi12:43:522:43:186:292:29
7:12
#2249
Finish
26.22 mi12:50:212:49:476:296:29
6:22
#2228
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1446137713772064(Top 7%)1968(Top 12%)1968(Top 35%)
10K6.21 mi3.10 mi1591-1451513-1361513-1361788(Top 6%)1697(Top 11%)1697(Top 30%)
15K9.32 mi3.11 mi1738-1471652-1391652-1392064(Top 7%)1968(Top 12%)1968(Top 35%)
20K12.43 mi3.11 mi1951-2131861-2091861-2092731(Top 10%)2601(Top 16%)2601(Top 46%)
Half13.11 mi0.68 mi2024-731932-711932-713585(Top 13%)3385(Top 21%)3385(Top 60%)
25K15.53 mi2.42 mi2279-2552176-2442176-2443889(Top 14%)3636(Top 23%)3636(Top 64%)
30K18.64 mi3.11 mi2262+172157+192157+192401(Top 8%)2273(Top 14%)2273(Top 40%)
20M20.00 mi1.36 mi2268-62163-62163-62699(Top 10%)2528(Top 16%)2528(Top 45%)
21M21.00 mi1.00 mi2226+422124+392124+391910(Top 7%)1799(Top 11%)1799(Top 32%)
35K21.75 mi0.75 mi2291-652183-592183-594836(Top 17%)4250(Top 26%)4250(Top 75%)
23M23.00 mi1.25 mi2241+502133+502133+502159(Top 8%)2016(Top 13%)2016(Top 36%)
24M24.00 mi1.00 mi2262-212152-192152-193035(Top 11%)2748(Top 17%)2748(Top 49%)
40K24.85 mi0.85 mi2263-12151+12151+12830(Top 10%)2556(Top 16%)2556(Top 45%)
25.2M25.20 mi0.35 mi2249+142136+152136+152103(Top 7%)1892(Top 12%)1892(Top 34%)
Finish26.22 mi1.02 mi2228+212113+232113+232132(Top 8%)1950(Top 12%)1950(Top 35%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21story building
+97ft-345ft

Overall

2064

Males

1968

M18-39

1968

5K→10K

3.1 - 6.2 mi

Top 6%
×5story building
+79ft-138ft

Overall

1788

Males

1697

M18-39

1697

10K→15K

6.2 - 9.3 mi

Top 7%
×3story building
+67ft-78ft

Overall

2064

Males

1968

M18-39

1968

15K→20K

9.3 - 12.4 mi

Top 10%
×5story building
+106ft-86ft

Overall

2731

Males

2601

M18-39

2601

20K→Half

12.4 - 13.1 mi

Top 13%
×2story building
+19ft-37ft

Overall

3585

Males

3385

M18-39

3385

Half→25K

13.1 - 15.5 mi

Top 14%
×4story building
+66ft-88ft

Overall

3889

Males

3636

M18-39

3636

25K→30K

15.5 - 18.6 mi

Top 8%
×9story building
+181ft-148ft

Overall

2401

Males

2273

M18-39

2273

30K→20M

18.6 - 20.0 mi

Top 10%
×5story building
+64ft-50ft

Overall

2699

Males

2528

M18-39

2528

20M→21M

20.0 - 21.0 mi

Top 7%
×8story building
+106ft-24ft

Overall

1910

Males

1799

M18-39

1799

21M→35K

21.0 - 21.8 mi

Top 17%
×7story building
+17ft-86ft

Overall

4836

Males

4250

M18-39

4250

35K→23M

21.8 - 23.0 mi

Top 8%
×5story building
+23ft-63ft

Overall

2159

Males

2016

M18-39

2016

23M→24M

23.0 - 24.0 mi

Top 11%
×6story building
+12ft-82ft

Overall

3035

Males

2748

M18-39

2748

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2830

Males

2556

M18-39

2556

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

2103

Males

1892

M18-39

1892

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2story building
+22ft-21ft

Overall

2132

Males

1950

M18-39

1950

Passing Analysis

Category:
Athletes Passed
496
Passed By
1278
Net Change
-782
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1446
5K → 10K26171-145#1446#1591
10K → 15K26173-147#1591#1738
15K → 20K22235-213#1738#1951
20K → Half073-73#1951#2024
Half → 25K13268-255#2024#2279
25K → 30K9982+17#2279#2262
30K → 20M3844-6#2262#2268
20M → 21M5917+42#2268#2226
21M → 35K1075-65#2226#2291
35K → 23M6616+50#2291#2241
23M → 24M3354-21#2241#2262
24M → 40K3738-1#2262#2263
40K → 25.2M228+14#2263#2249
25.2M → Finish4524+21#2249#2228
TOTALS4961278-782
📊

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