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BOSTON MARATHON 2025

Desmond Klein

Bib: 25054•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M70-74)
#0 / 228
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
9:59/mi
31:02
↑ 97↓ 3451.5%
10K· 6.21 mi
9:12/mi
59:36
↑ 79↓ 1380.4%
15K· 9.32 mi
9:42/mi
1:29:43
↑ 67↓ 78
20K· 12.43 mi
10:19/mi
2:01:45
↑ 106↓ 860.1%
Half· 13.11 mi
10:14/mi
2:08:44
↑ 19↓ 370.5%
25K· 15.53 mi
10:50/mi
2:35:00
↑ 66↓ 880.2%
30K· 18.64 mi
11:55/mi
3:12:01
↑ 181↓ 1480.2%
20M
12:25/mi
3:28:54
↑ 64↓ 500.2%
21M
13:04/mi
3:41:58
↑ 106↓ 241.6%
35K· 21.75 mi
11:46/mi
3:50:46
↑ 17↓ 861.7%
23M
11:55/mi
4:05:41
↑ 23↓ 630.6%
24M
11:19/mi
4:17:00
↓ 821.3%
40K· 24.85 mi
12:27/mi
4:27:39
↓ 200.3%
25.2M
13:29/mi
4:32:18
↑ 13↓ 160.2%
Finish· 26.22 mi
11:30/mi
4:44:01
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:08:44
Pace9:49 /mi
2nd Half
Distance13.11 mi
Time2:35:17
Pace11:51 /mi
📊Positive Split: 20.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:31:3031:029:5931:02
9:59
-
10K
6.21 mi12:00:0459:369:3628:34
9:12
-0:47
15K
9.32 mi12:30:111:29:439:3830:07
9:42
+0:30
20K
12.43 mi13:02:132:01:459:4832:02
10:19
+0:37
Half
13.11 mi13:09:122:08:449:496:59
10:14
-0:05
25K
15.53 mi13:35:282:35:009:5926:16
10:50
+0:36
30K
18.64 mi14:12:293:12:0110:1837:01
11:55
+1:05
20M
20.00 mi14:29:223:28:5410:2716:53
12:25
+0:30
21M
21.00 mi14:42:263:41:5810:3413:04
13:04
+0:39
35K
21.75 mi14:51:143:50:4610:378:48
11:46
-1:18
23M
23.00 mi15:06:094:05:4110:4114:55
11:55
+0:09
24M
24.00 mi15:17:284:17:0010:4311:19
11:19
-0:36
40K
24.85 mi15:28:074:27:3910:4610:39
12:27
+1:08
25.2M
25.20 mi15:32:464:32:1810:484:39
13:29
+1:02
Finish
26.22 mi15:44:294:44:0110:5011:43
11:30
-1:59

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

9:12 /mi

Average Pace

10:50 /mi

Slowest Pace

13:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:35:00

55% of race

Time at Steady Pace

1:23:46

29% of race

Time at Slower Pace

45:15

16% of race

Average Pace: 10:50 /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 mi11:31:3031:029:5931:02
9:59
#25540
10K
6.21 mi12:00:0459:369:3628:34
9:12
#24431
15K
9.32 mi12:30:111:29:439:3830:07
9:42
#24381
20K
12.43 mi13:02:132:01:459:4832:02
10:19
#24531
Half
13.11 mi13:09:122:08:449:496:59
10:14
#24576
25K
15.53 mi13:35:282:35:009:5926:16
10:50
#24666
30K
18.64 mi14:12:293:12:0110:1837:01
11:55
#24869
20M
20.00 mi14:29:223:28:5410:2716:53
12:25
#24970
21M
21.00 mi14:42:263:41:5810:3413:04
13:04
#25001
35K
21.75 mi14:51:143:50:4610:378:48
11:46
#25043
23M
23.00 mi15:06:094:05:4110:4114:55
11:55
#25047
24M
24.00 mi15:17:284:17:0010:4311:19
11:19
#25029
40K
24.85 mi15:28:074:27:3910:4610:39
12:27
#25054
25.2M
25.20 mi15:32:464:32:1810:484:39
13:29
#25061
Finish
26.22 mi15:44:294:44:0110:5011:43
11:30
#25118
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM70-74Seg. OverallSeg. MalesSeg. M70-74
5K3.11 mi3.11 mi25540149771497724259(Top 85%)14383(Top 89%)14383(Top 6308%)
10K6.21 mi3.10 mi24431+110914456+52114456+52123177(Top 82%)13890(Top 86%)13890(Top 6092%)
15K9.32 mi3.11 mi24381+5014426+3014426+3024259(Top 85%)14383(Top 89%)14383(Top 6308%)
20K12.43 mi3.11 mi24531-15014477-5114477-5124846(Top 87%)14604(Top 91%)14604(Top 6405%)
Half13.11 mi0.68 mi24576-4514497-2014497-2025311(Top 89%)14804(Top 92%)14804(Top 6493%)
25K15.53 mi2.42 mi24666-9014535-3814535-3824961(Top 88%)14630(Top 91%)14630(Top 6417%)
30K18.64 mi3.11 mi24869-20314601-6614601-6625472(Top 90%)14751(Top 92%)14751(Top 6470%)
20M20.00 mi1.36 mi24970-10114628-2714628-2725823(Top 91%)14842(Top 92%)14842(Top 6510%)
21M21.00 mi1.00 mi25001-3114629-114629-125127(Top 88%)14436(Top 90%)14436(Top 6332%)
35K21.75 mi0.75 mi25043-4214639-1014639-1025507(Top 90%)14591(Top 91%)14591(Top 6400%)
23M23.00 mi1.25 mi25047-414625+1414625+1424993(Top 88%)14333(Top 89%)14333(Top 6286%)
24M24.00 mi1.00 mi25029+1814608+1714608+1724601(Top 87%)14109(Top 88%)14109(Top 6188%)
40K24.85 mi0.85 mi25054-2514611-314611-325608(Top 90%)14590(Top 91%)14590(Top 6399%)
25.2M25.20 mi0.35 mi25061-714612-114612-125654(Top 90%)14568(Top 90%)14568(Top 6389%)
Finish26.22 mi1.02 mi25118-5714632-2014632-2026133(Top 92%)14853(Top 92%)14853(Top 6514%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21story building
+97ft-345ft

Overall

24259

Males

14383

M70-74

14383

5K→10K

3.1 - 6.2 mi

Top 82%
×5story building
+79ft-138ft

Overall

23177

Males

13890

M70-74

13890

10K→15K

6.2 - 9.3 mi

Top 85%
×3story building
+67ft-78ft

Overall

24259

Males

14383

M70-74

14383

15K→20K

9.3 - 12.4 mi

Top 87%
×5story building
+106ft-86ft

Overall

24846

Males

14604

M70-74

14604

20K→Half

12.4 - 13.1 mi

Top 89%
×2story building
+19ft-37ft

Overall

25311

Males

14804

M70-74

14804

Half→25K

13.1 - 15.5 mi

Top 88%
×4story building
+66ft-88ft

Overall

24961

Males

14630

M70-74

14630

25K→30K

15.5 - 18.6 mi

Top 90%
×9story building
+181ft-148ft

Overall

25472

Males

14751

M70-74

14751

30K→20M

18.6 - 20.0 mi

Top 91%
×5story building
+64ft-50ft

Overall

25823

Males

14842

M70-74

14842

20M→21M

20.0 - 21.0 mi

Top 88%
×8story building
+106ft-24ft

Overall

25127

Males

14436

M70-74

14436

21M→35K

21.0 - 21.8 mi

Top 90%
×7story building
+17ft-86ft

Overall

25507

Males

14591

M70-74

14591

35K→23M

21.8 - 23.0 mi

Top 88%
×5story building
+23ft-63ft

Overall

24993

Males

14333

M70-74

14333

23M→24M

23.0 - 24.0 mi

Top 87%
×6story building
+12ft-82ft

Overall

24601

Males

14109

M70-74

14109

24M→40K

24.0 - 24.9 mi

Top 90%
×1story
+6ft-20ft

Overall

25608

Males

14590

M70-74

14590

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

25654

Males

14568

M70-74

14568

25.2M→Finish

25.2 - 26.2 mi

Top 92%
×2story building
+22ft-21ft

Overall

26133

Males

14853

M70-74

14853

Passing Analysis

Category:
Athletes Passed
1748
Passed By
1326
Net Change
+422
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25540
5K → 10K11134+1109#25540#24431
10K → 15K167117+50#24431#24381
15K → 20K90240-150#24381#24531
20K → Half1055-45#24531#24576
Half → 25K79169-90#24576#24666
25K → 30K77280-203#24666#24869
30K → 20M29130-101#24869#24970
20M → 21M3869-31#24970#25001
21M → 35K1557-42#25001#25043
35K → 23M4044-4#25043#25047
23M → 24M4325+18#25047#25029
24M → 40K2752-25#25029#25054
40K → 25.2M1219-7#25054#25061
25.2M → Finish865-57#25061#25118
TOTALS17481326+422
📊

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