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BOSTON MARATHON 2025

Konstantinos Lampsias

Bib: 30334•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
10:49/mi
33:36
↑ 97↓ 3451.5%
10K· 6.21 mi
10:32/mi
1:06:21
↑ 79↓ 1380.4%
15K· 9.32 mi
10:20/mi
1:38:26
↑ 67↓ 78
20K· 12.43 mi
10:10/mi
2:10:02
↑ 106↓ 860.1%
Half· 13.11 mi
10:10/mi
2:16:58
↑ 19↓ 370.5%
25K· 15.53 mi
10:01/mi
2:41:16
↑ 66↓ 880.2%
30K· 18.64 mi
10:42/mi
3:14:31
↑ 181↓ 1480.2%
20M
10:06/mi
3:28:14
↑ 64↓ 500.2%
21M
10:53/mi
3:39:07
↑ 106↓ 241.6%
35K· 21.75 mi
9:40/mi
3:46:21
↑ 17↓ 861.7%
23M
10:07/mi
3:59:01
↑ 23↓ 630.6%
24M
10:37/mi
4:09:38
↓ 821.3%
40K· 24.85 mi
10:50/mi
4:18:54
↓ 200.3%
25.2M
12:19/mi
4:23:09
↑ 13↓ 160.2%
Finish· 26.22 mi
9:11/mi
4:32:31
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time2:16:58
Pace10:27 /mi
2nd Half✓ Faster
Distance13.11 mi
Time2:15:33
Pace10:20 /mi
📊Negative Split: 1.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:58:1033:3610:4933:36
10:49
-
10K
6.21 mi12:30:551:06:2110:4132:45
10:32
-0:17
15K
9.32 mi13:03:001:38:2610:3432:05
10:20
-0:12
20K
12.43 mi13:34:362:10:0210:2831:36
10:10
-0:10
Half
13.11 mi13:41:322:16:5810:276:56
10:10
0:00
25K
15.53 mi14:05:502:41:1610:2324:18
10:01
-0:09
30K
18.64 mi14:39:053:14:3110:2633:15
10:42
+0:41
20M
20.00 mi14:52:483:28:1410:2513:43
10:06
-0:36
21M
21.00 mi15:03:413:39:0710:2610:53
10:53
+0:47
35K
21.75 mi15:10:553:46:2110:247:14
9:40
-1:13
23M
23.00 mi15:23:353:59:0110:2412:40
10:07
+0:27
24M
24.00 mi15:34:124:09:3810:2410:37
10:37
+0:30
40K
24.85 mi15:43:284:18:5410:259:16
10:50
+0:13
25.2M
25.20 mi15:47:434:23:0910:274:15
12:19
+1:29
Finish
26.22 mi15:57:054:32:3110:249:22
9:11
-3:08

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

9:11 /mi

Average Pace

10:24 /mi

Slowest Pace

12:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

16:36

6% of race

Time at Steady Pace

2:44:40

60% of race

Time at Slower Pace

1:31:15

33% of race

Average Pace: 10:24 /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 mi11:58:1033:3610:4933:36
10:49
#27312
10K
6.21 mi12:30:551:06:2110:4132:45
10:32
#26815
15K
9.32 mi13:03:001:38:2610:3432:05
10:20
#26384
20K
12.43 mi13:34:362:10:0210:2831:36
10:10
#25909
Half
13.11 mi13:41:322:16:5810:276:56
10:10
#25880
25K
15.53 mi14:05:502:41:1610:2324:18
10:01
#25475
30K
18.64 mi14:39:053:14:3110:2633:15
10:42
#25100
20M
20.00 mi14:52:483:28:1410:2513:43
10:06
#24900
21M
21.00 mi15:03:413:39:0710:2610:53
10:53
#24746
35K
21.75 mi15:10:553:46:2110:247:14
9:40
#24641
23M
23.00 mi15:23:353:59:0110:2412:40
10:07
#24471
24M
24.00 mi15:34:124:09:3810:2410:37
10:37
#24414
40K
24.85 mi15:43:284:18:5410:259:16
10:50
#24358
25.2M
25.20 mi15:47:434:23:0910:274:15
12:19
#24352
Finish
26.22 mi15:57:054:32:3110:249:22
9:11
#24231
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi27312157321573225640(Top 90%)14992(Top 93%)14992(Top 266%)
10K6.21 mi3.10 mi26815+49715517+21515517+21526341(Top 93%)15295(Top 95%)15295(Top 271%)
15K9.32 mi3.11 mi26384+43115325+19215325+19225640(Top 90%)14992(Top 93%)14992(Top 266%)
20K12.43 mi3.11 mi25909+47515106+21915106+21924579(Top 87%)14479(Top 90%)14479(Top 257%)
Half13.11 mi0.68 mi25880+2915090+1615090+1625165(Top 89%)14740(Top 92%)14740(Top 261%)
25K15.53 mi2.42 mi25475+40514902+18814902+18823315(Top 82%)13884(Top 86%)13884(Top 246%)
30K18.64 mi3.11 mi25100+37514700+20214700+20223404(Top 82%)13793(Top 86%)13793(Top 244%)
20M20.00 mi1.36 mi24900+20014594+10614594+10621261(Top 75%)12708(Top 79%)12708(Top 225%)
21M21.00 mi1.00 mi24746+15414519+7514519+7521079(Top 74%)12543(Top 78%)12543(Top 222%)
35K21.75 mi0.75 mi24641+10514463+5614463+5620899(Top 74%)12404(Top 77%)12404(Top 220%)
23M23.00 mi1.25 mi24471+17014364+9914364+9920870(Top 73%)12333(Top 77%)12333(Top 219%)
24M24.00 mi1.00 mi24414+5714330+3414330+3423116(Top 81%)13368(Top 83%)13368(Top 237%)
40K24.85 mi0.85 mi24358+5614295+3514295+3522769(Top 80%)13129(Top 82%)13129(Top 233%)
25.2M25.20 mi0.35 mi24352+614288+714288+723856(Top 84%)13701(Top 85%)13701(Top 243%)
Finish26.22 mi1.02 mi24231+12114212+7614212+7619912(Top 70%)11768(Top 73%)11768(Top 209%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21story building
+97ft-345ft

Overall

25640

Males

14992

M18-39

14992

5K→10K

3.1 - 6.2 mi

Top 93%
×5story building
+79ft-138ft

Overall

26341

Males

15295

M18-39

15295

10K→15K

6.2 - 9.3 mi

Top 90%
×3story building
+67ft-78ft

Overall

25640

Males

14992

M18-39

14992

15K→20K

9.3 - 12.4 mi

Top 87%
×5story building
+106ft-86ft

Overall

24579

Males

14479

M18-39

14479

20K→Half

12.4 - 13.1 mi

Top 89%
×2story building
+19ft-37ft

Overall

25165

Males

14740

M18-39

14740

Half→25K

13.1 - 15.5 mi

Top 82%
×4story building
+66ft-88ft

Overall

23315

Males

13884

M18-39

13884

25K→30K

15.5 - 18.6 mi

Top 82%
×9story building
+181ft-148ft

Overall

23404

Males

13793

M18-39

13793

30K→20M

18.6 - 20.0 mi

Top 75%
×5story building
+64ft-50ft

Overall

21261

Males

12708

M18-39

12708

20M→21M

20.0 - 21.0 mi

Top 74%
×8story building
+106ft-24ft

Overall

21079

Males

12543

M18-39

12543

21M→35K

21.0 - 21.8 mi

Top 74%
×7story building
+17ft-86ft

Overall

20899

Males

12404

M18-39

12404

35K→23M

21.8 - 23.0 mi

Top 73%
×5story building
+23ft-63ft

Overall

20870

Males

12333

M18-39

12333

23M→24M

23.0 - 24.0 mi

Top 81%
×6story building
+12ft-82ft

Overall

23116

Males

13368

M18-39

13368

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

22769

Males

13129

M18-39

13129

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

23856

Males

13701

M18-39

13701

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2story building
+22ft-21ft

Overall

19912

Males

11768

M18-39

11768

Passing Analysis

Category:
Athletes Passed
3176
Passed By
95
Net Change
+3081
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27312
5K → 10K51316+497#27312#26815
10K → 15K4398+431#26815#26384
15K → 20K4750+475#26384#25909
20K → Half334+29#25909#25880
Half → 25K4072+405#25880#25475
25K → 30K3838+375#25475#25100
30K → 20M2011+200#25100#24900
20M → 21M1595+154#24900#24746
21M → 35K1072+105#24746#24641
35K → 23M1711+170#24641#24471
23M → 24M7417+57#24471#24414
24M → 40K6711+56#24414#24358
40K → 25.2M2418+6#24358#24352
25.2M → Finish1232+121#24352#24231
TOTALS317695+3081
📊

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