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BOSTON MARATHON 2025

Kevin Delong

Bib: 6521•M

MO

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 25%
Gender (Male)
#0 / 16105
Top 38%
Masters (Masters Men)
#0 / 10463
Top 25%
Division (M45-49)
#0 / 2386
Top 35%
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
7:11/mi
22:19
↑ 97↓ 3451.5%
10K· 6.21 mi
7:08/mi
44:28
↑ 79↓ 1380.4%
15K· 9.32 mi
7:11/mi
1:06:48
↑ 67↓ 78
20K· 12.43 mi
7:14/mi
1:29:15
↑ 106↓ 860.1%
Half· 13.11 mi
7:07/mi
1:34:06
↑ 19↓ 370.5%
25K· 15.53 mi
7:12/mi
1:51:33
↑ 66↓ 880.2%
30K· 18.64 mi
7:27/mi
2:14:43
↑ 181↓ 1480.2%
20M
7:27/mi
2:24:51
↑ 64↓ 500.2%
21M
7:50/mi
2:32:41
↑ 106↓ 241.6%
35K· 21.75 mi
7:01/mi
2:37:56
↑ 17↓ 861.7%
23M
7:26/mi
2:47:14
↑ 23↓ 630.6%
24M
7:14/mi
2:54:28
↓ 821.3%
40K· 24.85 mi
7:23/mi
3:00:47
↓ 200.3%
25.2M
7:53/mi
3:03:30
↑ 13↓ 160.2%
Finish· 26.22 mi
7:02/mi
3:10:40
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:06
Pace7:11 /mi
2nd Half
Distance13.11 mi
Time1:36:34
Pace7:22 /mi
📊Positive Split: 2.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:2522:197:1122:19
7:11
-
10K
6.21 mi11:13:3444:287:0922:09
7:08
-0:03
15K
9.32 mi11:35:541:06:487:1022:20
7:11
+0:03
20K
12.43 mi11:58:211:29:157:1122:27
7:14
+0:03
Half
13.11 mi12:03:121:34:067:114:51
7:07
-0:07
25K
15.53 mi12:20:391:51:337:1117:27
7:12
+0:05
30K
18.64 mi12:43:492:14:437:1423:10
7:27
+0:15
20M
20.00 mi12:53:572:24:517:1510:08
7:27
0:00
21M
21.00 mi13:01:472:32:417:167:50
7:50
+0:23
35K
21.75 mi13:07:022:37:567:165:15
7:01
-0:49
23M
23.00 mi13:16:202:47:147:169:18
7:26
+0:25
24M
24.00 mi13:23:342:54:287:167:14
7:14
-0:12
40K
24.85 mi13:29:533:00:477:166:19
7:23
+0:09
25.2M
25.20 mi13:32:363:03:307:172:43
7:53
+0:30
Finish
26.22 mi13:39:463:10:407:177:10
7:02
-0:51

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

7:01 /mi

Average Pace

7:17 /mi

Slowest Pace

7:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:00:07

94% of race

Time at Steady Pace

10:33

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:16 /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 mi10:51:2522:197:1122:19
7:11
#9305
10K
6.21 mi11:13:3444:287:0922:09
7:08
#9078
15K
9.32 mi11:35:541:06:487:1022:20
7:11
#9038
20K
12.43 mi11:58:211:29:157:1122:27
7:14
#8804
Half
13.11 mi12:03:121:34:067:114:51
7:07
#8774
25K
15.53 mi12:20:391:51:337:1117:27
7:12
#8518
30K
18.64 mi12:43:492:14:437:1423:10
7:27
#8223
20M
20.00 mi12:53:572:24:517:1510:08
7:27
#8067
21M
21.00 mi13:01:472:32:417:167:50
7:50
#7891
35K
21.75 mi13:07:022:37:567:165:15
7:01
#7766
23M
23.00 mi13:16:202:47:147:169:18
7:26
#7612
24M
24.00 mi13:23:342:54:287:167:14
7:14
#7480
40K
24.85 mi13:29:533:00:477:166:19
7:23
#7382
25.2M
25.20 mi13:32:363:03:307:172:43
7:53
#7326
Finish
26.22 mi13:39:463:10:407:177:10
7:02
#7241
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi9305776777678996(Top 32%)7540(Top 47%)7540(Top 316%)
10K6.21 mi3.10 mi9078+2277645+1227645+1228895(Top 31%)7533(Top 47%)7533(Top 316%)
15K9.32 mi3.11 mi9038+407603+427603+428996(Top 32%)7540(Top 47%)7540(Top 316%)
20K12.43 mi3.11 mi8804+2347446+1577446+1578402(Top 30%)7106(Top 44%)7106(Top 298%)
Half13.11 mi0.68 mi8774+307418+287418+288286(Top 29%)7055(Top 44%)7055(Top 296%)
25K15.53 mi2.42 mi8518+2567244+1747244+1747567(Top 27%)6483(Top 40%)6483(Top 272%)
30K18.64 mi3.11 mi8223+2957010+2347010+2347415(Top 26%)6220(Top 39%)6220(Top 261%)
20M20.00 mi1.36 mi8067+1566876+1346876+1346709(Top 24%)5650(Top 35%)5650(Top 237%)
21M21.00 mi1.00 mi7891+1766738+1386738+1386356(Top 22%)5292(Top 33%)5292(Top 222%)
35K21.75 mi0.75 mi7766+1256635+1036635+1035450(Top 19%)4690(Top 29%)4690(Top 197%)
23M23.00 mi1.25 mi7612+1546490+1456490+1456192(Top 22%)5085(Top 32%)5085(Top 213%)
24M24.00 mi1.00 mi7480+1326373+1176373+1176006(Top 21%)4920(Top 31%)4920(Top 206%)
40K24.85 mi0.85 mi7382+986285+886285+886112(Top 22%)4912(Top 30%)4912(Top 206%)
25.2M25.20 mi0.35 mi7326+566235+506235+505255(Top 19%)4276(Top 27%)4276(Top 179%)
Finish26.22 mi1.02 mi7241+856156+796156+795923(Top 21%)4681(Top 29%)4681(Top 196%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21story building
+97ft-345ft

Overall

8996

Males

7540

M45-49

7540

5K→10K

3.1 - 6.2 mi

Top 31%
×5story building
+79ft-138ft

Overall

8895

Males

7533

M45-49

7533

10K→15K

6.2 - 9.3 mi

Top 32%
×3story building
+67ft-78ft

Overall

8996

Males

7540

M45-49

7540

15K→20K

9.3 - 12.4 mi

Top 30%
×5story building
+106ft-86ft

Overall

8402

Males

7106

M45-49

7106

20K→Half

12.4 - 13.1 mi

Top 29%
×2story building
+19ft-37ft

Overall

8286

Males

7055

M45-49

7055

Half→25K

13.1 - 15.5 mi

Top 27%
×4story building
+66ft-88ft

Overall

7567

Males

6483

M45-49

6483

25K→30K

15.5 - 18.6 mi

Top 26%
×9story building
+181ft-148ft

Overall

7415

Males

6220

M45-49

6220

30K→20M

18.6 - 20.0 mi

Top 24%
×5story building
+64ft-50ft

Overall

6709

Males

5650

M45-49

5650

20M→21M

20.0 - 21.0 mi

Top 22%
×8story building
+106ft-24ft

Overall

6356

Males

5292

M45-49

5292

21M→35K

21.0 - 21.8 mi

Top 19%
×7story building
+17ft-86ft

Overall

5450

Males

4690

M45-49

4690

35K→23M

21.8 - 23.0 mi

Top 22%
×5story building
+23ft-63ft

Overall

6192

Males

5085

M45-49

5085

23M→24M

23.0 - 24.0 mi

Top 21%
×6story building
+12ft-82ft

Overall

6006

Males

4920

M45-49

4920

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

6112

Males

4912

M45-49

4912

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5255

Males

4276

M45-49

4276

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2story building
+22ft-21ft

Overall

5923

Males

4681

M45-49

4681

Passing Analysis

Category:
Athletes Passed
2620
Passed By
556
Net Change
+2064
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9305
5K → 10K352125+227#9305#9078
10K → 15K182142+40#9078#9038
15K → 20K28551+234#9038#8804
20K → Half4616+30#8804#8774
Half → 25K27822+256#8774#8518
25K → 30K36772+295#8518#8223
30K → 20M18226+156#8223#8067
20M → 21M19418+176#8067#7891
21M → 35K1316+125#7891#7766
35K → 23M17521+154#7766#7612
23M → 24M14412+132#7612#7480
24M → 40K12224+98#7480#7382
40K → 25.2M604+56#7382#7326
25.2M → Finish10217+85#7326#7241
TOTALS2620556+2064
📊

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