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BOSTON MARATHON 2025

David Tran

Bib: 1143•M

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 2%
Gender (Male)
#0 / 16105
Top 3%
Division (M18-39)
#0 / 5642
Top 6%
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
5:54/mi
18:21
↑ 97↓ 3451.5%
10K· 6.21 mi
5:52/mi
36:35
↑ 79↓ 1380.4%
15K· 9.32 mi
5:54/mi
54:56
↑ 67↓ 78
20K· 12.43 mi
5:54/mi
1:13:15
↑ 106↓ 860.1%
Half· 13.11 mi
5:50/mi
1:17:14
↑ 19↓ 370.5%
25K· 15.53 mi
5:57/mi
1:31:40
↑ 66↓ 880.2%
30K· 18.64 mi
6:07/mi
1:50:41
↑ 181↓ 1480.2%
20M
6:05/mi
1:58:57
↑ 64↓ 500.2%
21M
6:18/mi
2:05:15
↑ 106↓ 241.6%
35K· 21.75 mi
5:46/mi
2:09:34
↑ 17↓ 861.7%
23M
5:51/mi
2:16:53
↑ 23↓ 630.6%
24M
5:41/mi
2:22:34
↓ 821.3%
40K· 24.85 mi
5:49/mi
2:27:32
↓ 200.3%
25.2M
6:14/mi
2:29:41
↑ 13↓ 160.2%
Finish· 26.22 mi
5:25/mi
2:35:12
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:17:14
Pace5:53 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:17:58
Pace5:57 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:3918:215:5418:21
5:54
-
10K
6.21 mi10:36:5336:355:5318:14
5:52
-0:02
15K
9.32 mi10:55:1454:565:5418:21
5:54
+0:02
20K
12.43 mi11:13:331:13:155:5418:19
5:54
0:00
Half
13.11 mi11:17:321:17:145:533:59
5:50
-0:04
25K
15.53 mi11:31:581:31:405:5414:26
5:57
+0:07
30K
18.64 mi11:50:591:50:415:5619:01
6:07
+0:10
20M
20.00 mi11:59:151:58:575:578:16
6:05
-0:02
21M
21.00 mi12:05:332:05:155:586:18
6:18
+0:13
35K
21.75 mi12:09:522:09:345:574:19
5:46
-0:32
23M
23.00 mi12:17:112:16:535:577:19
5:51
+0:05
24M
24.00 mi12:22:522:22:345:565:41
5:41
-0:10
40K
24.85 mi12:27:502:27:325:564:58
5:49
+0:08
25.2M
25.20 mi12:29:592:29:415:562:09
6:14
+0:25
Finish
26.22 mi12:35:302:35:125:555:31
5:25
-0:49

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

5:25 /mi

Average Pace

5:55 /mi

Slowest Pace

6:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59:28

77% of race

Time at Steady Pace

35:44

23% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 5:55 /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 mi10:18:3918:215:5418:21
5:54
#801
10K
6.21 mi10:36:5336:355:5318:14
5:52
#769
15K
9.32 mi10:55:1454:565:5418:21
5:54
#772
20K
12.43 mi11:13:331:13:155:5418:19
5:54
#722
Half
13.11 mi11:17:321:17:145:533:59
5:50
#720
25K
15.53 mi11:31:581:31:405:5414:26
5:57
#696
30K
18.64 mi11:50:591:50:415:5619:01
6:07
#680
20M
20.00 mi11:59:151:58:575:578:16
6:05
#650
21M
21.00 mi12:05:332:05:155:586:18
6:18
#618
35K
21.75 mi12:09:522:09:345:574:19
5:46
#590
23M
23.00 mi12:17:112:16:535:577:19
5:51
#562
24M
24.00 mi12:22:522:22:345:565:41
5:41
#527
40K
24.85 mi12:27:502:27:325:564:58
5:49
#497
25.2M
25.20 mi12:29:592:29:415:562:09
6:14
#481
Finish
26.22 mi12:35:302:35:125:555:31
5:25
#440
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi801747747770(Top 3%)721(Top 4%)721(Top 13%)
10K6.21 mi3.10 mi769+32718+29718+29753(Top 3%)706(Top 4%)706(Top 13%)
15K9.32 mi3.11 mi772-3721-3721-3770(Top 3%)721(Top 4%)721(Top 13%)
20K12.43 mi3.11 mi722+50673+48673+48605(Top 2%)558(Top 3%)558(Top 10%)
Half13.11 mi0.68 mi720+2671+2671+2646(Top 2%)603(Top 4%)603(Top 11%)
25K15.53 mi2.42 mi696+24648+23648+23677(Top 2%)629(Top 4%)629(Top 11%)
30K18.64 mi3.11 mi680+16633+15633+15726(Top 3%)678(Top 4%)678(Top 12%)
20M20.00 mi1.36 mi650+30603+30603+30500(Top 2%)468(Top 3%)468(Top 8%)
21M21.00 mi1.00 mi618+32571+32571+32366(Top 1%)343(Top 2%)343(Top 6%)
35K21.75 mi0.75 mi590+28544+27544+27342(Top 1%)320(Top 2%)320(Top 6%)
23M23.00 mi1.25 mi562+28517+27517+27201(Top 0.7%)186(Top 1%)186(Top 3%)
24M24.00 mi1.00 mi527+35484+33484+33180(Top 0.6%)166(Top 1%)166(Top 3%)
40K24.85 mi0.85 mi497+30456+28456+28203(Top 0.7%)188(Top 1%)188(Top 3%)
25.2M25.20 mi0.35 mi481+16443+13443+13187(Top 0.7%)177(Top 1%)177(Top 3%)
Finish26.22 mi1.02 mi440+41404+39404+39101(Top 0.4%)96(Top 0.6%)96(Top 2%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21story building
+97ft-345ft

Overall

770

Males

721

M18-39

721

5K→10K

3.1 - 6.2 mi

Top 3%
×5story building
+79ft-138ft

Overall

753

Males

706

M18-39

706

10K→15K

6.2 - 9.3 mi

Top 3%
×3story building
+67ft-78ft

Overall

770

Males

721

M18-39

721

15K→20K

9.3 - 12.4 mi

Top 2%
×5story building
+106ft-86ft

Overall

605

Males

558

M18-39

558

20K→Half

12.4 - 13.1 mi

Top 2%
×2story building
+19ft-37ft

Overall

646

Males

603

M18-39

603

Half→25K

13.1 - 15.5 mi

Top 2%
×4story building
+66ft-88ft

Overall

677

Males

629

M18-39

629

25K→30K

15.5 - 18.6 mi

Top 3%
×9story building
+181ft-148ft

Overall

726

Males

678

M18-39

678

30K→20M

18.6 - 20.0 mi

Top 2%
×5story building
+64ft-50ft

Overall

500

Males

468

M18-39

468

20M→21M

20.0 - 21.0 mi

Top 1%
×8story building
+106ft-24ft

Overall

366

Males

343

M18-39

343

21M→35K

21.0 - 21.8 mi

Top 1%
×7story building
+17ft-86ft

Overall

342

Males

320

M18-39

320

35K→23M

21.8 - 23.0 mi

Top 0.7%
×5story building
+23ft-63ft

Overall

201

Males

186

M18-39

186

23M→24M

23.0 - 24.0 mi

Top 0.6%
×6story building
+12ft-82ft

Overall

180

Males

166

M18-39

166

24M→40K

24.0 - 24.9 mi

Top 0.7%
×1story
+6ft-20ft

Overall

203

Males

188

M18-39

188

40K→25.2M

24.9 - 25.2 mi

Top 0.7%
×1story
+13ft-16ft

Overall

187

Males

177

M18-39

177

25.2M→Finish

25.2 - 26.2 mi

Top 0.4%
×2story building
+22ft-21ft

Overall

101

Males

96

M18-39

96

Passing Analysis

Category:
Athletes Passed
466
Passed By
105
Net Change
+361
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#801
5K → 10K6028+32#801#769
10K → 15K2629-3#769#772
15K → 20K533+50#772#722
20K → Half42+2#722#720
Half → 25K3410+24#720#696
25K → 30K4226+16#696#680
30K → 20M333+30#680#650
20M → 21M353+32#650#618
21M → 35K280+28#618#590
35K → 23M291+28#590#562
23M → 24M350+35#562#527
24M → 40K300+30#527#497
40K → 25.2M160+16#497#481
25.2M → Finish410+41#481#440
TOTALS466105+361
📊

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