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BOSTON MARATHON 2025

Kurt Sundberg

Bib: 26507•M

NY

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
9:52/mi
30:38
↑ 97↓ 3451.5%
10K· 6.21 mi
10:08/mi
1:02:06
↑ 79↓ 1380.4%
15K· 9.32 mi
10:15/mi
1:33:56
↑ 67↓ 78
20K· 12.43 mi
10:49/mi
2:07:33
↑ 106↓ 860.1%
Half· 13.11 mi
10:48/mi
2:14:55
↑ 19↓ 370.5%
25K· 15.53 mi
12:06/mi
2:44:16
↑ 66↓ 880.2%
30K· 18.64 mi
13:36/mi
3:26:31
↑ 181↓ 1480.2%
20M
14:22/mi
3:46:02
↑ 64↓ 500.2%
21M
15:40/mi
4:01:42
↑ 106↓ 241.6%
35K· 21.75 mi
12:46/mi
4:11:15
↑ 17↓ 861.7%
23M
13:42/mi
4:28:24
↑ 23↓ 630.6%
24M
13:59/mi
4:42:23
↓ 821.3%
40K· 24.85 mi
13:59/mi
4:54:20
↓ 200.3%
25.2M
13:29/mi
4:58:59
↑ 13↓ 160.2%
Finish· 26.22 mi
11:51/mi
5:11:04
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:14:55
Pace10:17 /mi
2nd Half
Distance13.11 mi
Time2:56:09
Pace13:26 /mi
📊Positive Split: 30.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:57:0730:389:5230:38
9:52
-
10K
6.21 mi12:28:351:02:0610:0031:28
10:08
+0:16
15K
9.32 mi13:00:251:33:5610:0531:50
10:15
+0:07
20K
12.43 mi13:34:022:07:3310:1633:37
10:49
+0:34
Half
13.11 mi13:41:242:14:5510:177:22
10:48
-0:01
25K
15.53 mi14:10:452:44:1610:3429:21
12:06
+1:18
30K
18.64 mi14:53:003:26:3111:0542:15
13:36
+1:30
20M
20.00 mi15:12:313:46:0211:1819:31
14:22
+0:46
21M
21.00 mi15:28:114:01:4211:3115:40
15:40
+1:18
35K
21.75 mi15:37:444:11:1511:339:33
12:46
-2:54
23M
23.00 mi15:54:534:28:2411:4017:09
13:42
+0:56
24M
24.00 mi16:08:524:42:2311:4613:59
13:59
+0:17
40K
24.85 mi16:20:494:54:2011:5111:57
13:59
0:00
25.2M
25.20 mi16:25:284:58:5911:524:39
13:29
-0:30
Finish
26.22 mi16:37:335:11:0411:5212:05
11:51
-1:38

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

9:52 /mi

Average Pace

11:52 /mi

Slowest Pace

15:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:27:00

47% of race

Time at Steady Pace

1:25:48

28% of race

Time at Slower Pace

1:18:16

25% of race

Average Pace: 11:52 /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 mi11:57:0730:389:5230:38
9:52
#25241
10K
6.21 mi12:28:351:02:0610:0031:28
10:08
#25430
15K
9.32 mi13:00:251:33:5610:0531:50
10:15
#25487
20K
12.43 mi13:34:022:07:3310:1633:37
10:49
#25542
Half
13.11 mi13:41:242:14:5510:177:22
10:48
#25589
25K
15.53 mi14:10:452:44:1610:3429:21
12:06
#25832
30K
18.64 mi14:53:003:26:3111:0542:15
13:36
#26201
20M
20.00 mi15:12:313:46:0211:1819:31
14:22
#26380
21M
21.00 mi15:28:114:01:4211:3115:40
15:40
#26486
35K
21.75 mi15:37:444:11:1511:339:33
12:46
#26501
23M
23.00 mi15:54:534:28:2411:4017:09
13:42
#26564
24M
24.00 mi16:08:524:42:2311:4613:59
13:59
#26653
40K
24.85 mi16:20:494:54:2011:5111:57
13:59
#26691
25.2M
25.20 mi16:25:284:58:5911:524:39
13:29
#26689
Finish
26.22 mi16:37:335:11:0411:5212:05
11:51
#26696
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 mi25241148381483825503(Top 90%)14932(Top 93%)14932(Top 265%)
10K6.21 mi3.10 mi25430-18914901-6314901-6325583(Top 90%)14948(Top 93%)14948(Top 265%)
15K9.32 mi3.11 mi25487-5714935-3414935-3425503(Top 90%)14932(Top 93%)14932(Top 265%)
20K12.43 mi3.11 mi25542-5514949-1414949-1425750(Top 91%)15015(Top 93%)15015(Top 266%)
Half13.11 mi0.68 mi25589-4714970-2114970-2126256(Top 92%)15220(Top 95%)15220(Top 270%)
25K15.53 mi2.42 mi25832-24315060-9015060-9026546(Top 93%)15313(Top 95%)15313(Top 271%)
30K18.64 mi3.11 mi26201-36915199-13915199-13927202(Top 96%)15526(Top 96%)15526(Top 275%)
20M20.00 mi1.36 mi26380-17915262-6315262-6327552(Top 97%)15635(Top 97%)15635(Top 277%)
21M21.00 mi1.00 mi26486-10615303-4115303-4127649(Top 97%)15696(Top 97%)15696(Top 278%)
35K21.75 mi0.75 mi26501-1515296+715296+726752(Top 94%)15218(Top 94%)15218(Top 270%)
23M23.00 mi1.25 mi26564-6315306-1015306-1027070(Top 95%)15360(Top 95%)15360(Top 272%)
24M24.00 mi1.00 mi26653-8915342-3615342-3627627(Top 97%)15610(Top 97%)15610(Top 277%)
40K24.85 mi0.85 mi26691-3815352-1015352-1027167(Top 96%)15376(Top 95%)15376(Top 273%)
25.2M25.20 mi0.35 mi26689+215348+415348+425665(Top 90%)14579(Top 91%)14579(Top 258%)
Finish26.22 mi1.02 mi26696-715343+515343+526635(Top 94%)15120(Top 94%)15120(Top 268%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21story building
+97ft-345ft

Overall

25503

Males

14932

M18-39

14932

5K→10K

3.1 - 6.2 mi

Top 90%
×5story building
+79ft-138ft

Overall

25583

Males

14948

M18-39

14948

10K→15K

6.2 - 9.3 mi

Top 90%
×3story building
+67ft-78ft

Overall

25503

Males

14932

M18-39

14932

15K→20K

9.3 - 12.4 mi

Top 91%
×5story building
+106ft-86ft

Overall

25750

Males

15015

M18-39

15015

20K→Half

12.4 - 13.1 mi

Top 92%
×2story building
+19ft-37ft

Overall

26256

Males

15220

M18-39

15220

Half→25K

13.1 - 15.5 mi

Top 93%
×4story building
+66ft-88ft

Overall

26546

Males

15313

M18-39

15313

25K→30K

15.5 - 18.6 mi

Top 96%
×9story building
+181ft-148ft

Overall

27202

Males

15526

M18-39

15526

30K→20M

18.6 - 20.0 mi

Top 97%
×5story building
+64ft-50ft

Overall

27552

Males

15635

M18-39

15635

20M→21M

20.0 - 21.0 mi

Top 97%
×8story building
+106ft-24ft

Overall

27649

Males

15696

M18-39

15696

21M→35K

21.0 - 21.8 mi

Top 94%
×7story building
+17ft-86ft

Overall

26752

Males

15218

M18-39

15218

35K→23M

21.8 - 23.0 mi

Top 95%
×5story building
+23ft-63ft

Overall

27070

Males

15360

M18-39

15360

23M→24M

23.0 - 24.0 mi

Top 97%
×6story building
+12ft-82ft

Overall

27627

Males

15610

M18-39

15610

24M→40K

24.0 - 24.9 mi

Top 96%
×1story
+6ft-20ft

Overall

27167

Males

15376

M18-39

15376

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

25665

Males

14579

M18-39

14579

25.2M→Finish

25.2 - 26.2 mi

Top 94%
×2story building
+22ft-21ft

Overall

26635

Males

15120

M18-39

15120

Passing Analysis

Category:
Athletes Passed
527
Passed By
1982
Net Change
-1455
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25241
5K → 10K126315-189#25241#25430
10K → 15K99156-57#25430#25487
15K → 20K102157-55#25487#25542
20K → Half956-47#25542#25589
Half → 25K41284-243#25589#25832
25K → 30K30399-369#25832#26201
30K → 20M14193-179#26201#26380
20M → 21M13119-106#26380#26486
21M → 35K2641-15#26486#26501
35K → 23M2689-63#26501#26564
23M → 24M594-89#26564#26653
24M → 40K1149-38#26653#26691
40K → 25.2M75+2#26691#26689
25.2M → Finish1825-7#26689#26696
TOTALS5271982-1455
📊

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