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BOSTON MARATHON 2025

Erik Ulin

Bib: 5406•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 31%
Gender (Male)
#0 / 16105
Top 44%
Masters (Masters Men)
#0 / 10463
Top 33%
Division (M45-49)
#0 / 2386
Top 47%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:31
Rank: #7245
Start → 5K
21:31 | 6:56/mi
10K· 6.21 mi
43:13
Rank: #7545 (-300)
5K → 10K
21:42 | 6:59/mi
15K· 9.32 mi
1:05:21
Rank: #7824 (-279)
10K → 15K
22:08 | 7:07/mi
20K· 12.43 mi
1:27:55
Rank: #7991 (-167)
15K → 20K
22:34 | 7:16/mi
Half· 13.11 mi
1:32:41
Rank: #7950 (+41)
20K → Half
4:46 | 6:59/mi
25K· 15.53 mi
1:51:35
Rank: #8535 (-585)
Half → 25K
18:54 | 7:48/mi
30K· 18.64 mi
2:16:44
Rank: #9152 (-617)
25K → 30K
25:09 | 8:06/mi
20M
2:27:05
Rank: #8992 (+160)
30K → 20M
10:21 | 7:37/mi
21M
2:35:19
Rank: #8954 (+38)
20M → 21M
8:14 | 8:14/mi
35K· 21.75 mi
2:40:56
Rank: #8901 (+53)
21M → 35K
5:37 | 7:30/mi
23M
2:50:51
Rank: #8888 (+13)
35K → 23M
9:55 | 7:55/mi
24M
2:58:41
Rank: #8910 (-22)
23M → 24M
7:50 | 7:50/mi
40K· 24.85 mi
3:05:28
Rank: #8889 (+21)
24M → 40K
6:47 | 7:56/mi
25.2M
3:08:26
Rank: #8903 (-14)
40K → 25.2M
2:58 | 8:36/mi
Finish· 26.22 mi
3:16:09
Rank: #8903
25.2M → Finish
7:43 | 7:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:41
Pace7:04 /mi
2nd Half
Distance13.11 mi
Time1:43:28
Pace7:54 /mi
📊Positive Split: 11.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:5521:316:5621:31
6:56
-
10K
6.21 mi10:47:3743:136:5721:42
6:59
+0:03
15K
9.32 mi11:09:451:05:217:0122:08
7:07
+0:08
20K
12.43 mi11:32:191:27:557:0422:34
7:16
+0:09
Half
13.11 mi11:37:051:32:417:044:46
6:59
-0:17
25K
15.53 mi11:55:591:51:357:1118:54
7:48
+0:49
30K
18.64 mi12:21:082:16:447:2025:09
8:06
+0:18
20M
20.00 mi12:31:292:27:057:2110:21
7:37
-0:29
21M
21.00 mi12:39:432:35:197:248:14
8:14
+0:37
35K
21.75 mi12:45:202:40:567:245:37
7:30
-0:44
23M
23.00 mi12:55:152:50:517:269:55
7:55
+0:25
24M
24.00 mi13:03:052:58:417:277:50
7:50
-0:05
40K
24.85 mi13:09:523:05:287:286:47
7:56
+0:06
25.2M
25.20 mi13:12:503:08:267:292:58
8:36
+0:40
Finish
26.22 mi13:20:333:16:097:297:43
7:34
-1:02

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

6:56 /mi

Average Pace

7:29 /mi

Slowest Pace

8:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:32:41

47% of race

Time at Steady Pace

50:25

26% of race

Time at Slower Pace

53:03

27% of race

Average Pace: 7:29 /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 mi10:25:5521:316:5621:31
6:56
#7245
10K
6.21 mi10:47:3743:136:5721:42
6:59
#7545
15K
9.32 mi11:09:451:05:217:0122:08
7:07
#7824
20K
12.43 mi11:32:191:27:557:0422:34
7:16
#7991
Half
13.11 mi11:37:051:32:417:044:46
6:59
#7950
25K
15.53 mi11:55:591:51:357:1118:54
7:48
#8535
30K
18.64 mi12:21:082:16:447:2025:09
8:06
#9152
20M
20.00 mi12:31:292:27:057:2110:21
7:37
#8992
21M
21.00 mi12:39:432:35:197:248:14
8:14
#8954
35K
21.75 mi12:45:202:40:567:245:37
7:30
#8901
23M
23.00 mi12:55:152:50:517:269:55
7:55
#8888
24M
24.00 mi13:03:052:58:417:277:50
7:50
#8910
40K
24.85 mi13:09:523:05:287:286:47
7:56
#8889
25.2M
25.20 mi13:12:503:08:267:292:58
8:36
#8903
Finish
26.22 mi13:20:333:16:097:297:43
7:34
#8903
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi7245647664768485(Top 30%)7233(Top 45%)7233(Top 303%)
10K6.21 mi3.10 mi7545-3006685-2096685-2097814(Top 28%)6846(Top 43%)6846(Top 287%)
15K9.32 mi3.11 mi7824-2796860-1756860-1758485(Top 30%)7233(Top 45%)7233(Top 303%)
20K12.43 mi3.11 mi7991-1676946-866946-868711(Top 31%)7278(Top 45%)7278(Top 305%)
Half13.11 mi0.68 mi7950+416919+276919+277394(Top 26%)6484(Top 40%)6484(Top 272%)
25K15.53 mi2.42 mi8535-5857256-3377256-33712270(Top 43%)8969(Top 56%)8969(Top 376%)
30K18.64 mi3.11 mi9152-6177548-2927548-29212040(Top 42%)8692(Top 54%)8692(Top 364%)
20M20.00 mi1.36 mi8992+1607430+1187430+1187755(Top 27%)6278(Top 39%)6278(Top 263%)
21M21.00 mi1.00 mi8954+387377+537377+538733(Top 31%)6652(Top 41%)6652(Top 279%)
35K21.75 mi0.75 mi8901+537325+527325+528606(Top 30%)6617(Top 41%)6617(Top 277%)
23M23.00 mi1.25 mi8888+137270+557270+559397(Top 33%)6908(Top 43%)6908(Top 290%)
24M24.00 mi1.00 mi8910-227248+227248+229995(Top 35%)7144(Top 44%)7144(Top 299%)
40K24.85 mi0.85 mi8889+217200+487200+489641(Top 34%)6851(Top 43%)6851(Top 287%)
25.2M25.20 mi0.35 mi8903-147191+97191+99283(Top 33%)6537(Top 41%)6537(Top 274%)
Finish26.22 mi1.02 mi89037156+357156+359669(Top 34%)6781(Top 42%)6781(Top 284%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21stories
+97ft-345ft

Overall

8485

Males

7233

M45-49

7233

5K→10K

3.1 - 6.2 mi

Top 28%
×5stories
+79ft-138ft

Overall

7814

Males

6846

M45-49

6846

10K→15K

6.2 - 9.3 mi

Top 30%
×3stories
+67ft-78ft

Overall

8485

Males

7233

M45-49

7233

15K→20K

9.3 - 12.4 mi

Top 31%
×5stories
+106ft-86ft

Overall

8711

Males

7278

M45-49

7278

20K→Half

12.4 - 13.1 mi

Top 26%
×2stories
+19ft-37ft

Overall

7394

Males

6484

M45-49

6484

Half→25K

13.1 - 15.5 mi

Top 43%
×4stories
+66ft-88ft

Overall

12270

Males

8969

M45-49

8969

25K→30K

15.5 - 18.6 mi

Top 42%
×9stories
+181ft-148ft

Overall

12040

Males

8692

M45-49

8692

30K→20M

18.6 - 20.0 mi

Top 27%
×5stories
+64ft-50ft

Overall

7755

Males

6278

M45-49

6278

20M→21M

20.0 - 21.0 mi

Top 31%
×8stories
+106ft-24ft

Overall

8733

Males

6652

M45-49

6652

21M→35K

21.0 - 21.8 mi

Top 30%
×7stories
+17ft-86ft

Overall

8606

Males

6617

M45-49

6617

35K→23M

21.8 - 23.0 mi

Top 33%
×5stories
+23ft-63ft

Overall

9397

Males

6908

M45-49

6908

23M→24M

23.0 - 24.0 mi

Top 35%
×6stories
+12ft-82ft

Overall

9995

Males

7144

M45-49

7144

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

9641

Males

6851

M45-49

6851

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

9283

Males

6537

M45-49

6537

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2stories
+22ft-21ft

Overall

9669

Males

6781

M45-49

6781

Passing Analysis

Category:
Athletes Passed
1213
Passed By
2871
Net Change
-1658
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7245
5K → 10K101401-300#7245#7545
10K → 15K69348-279#7545#7824
15K → 20K91258-167#7824#7991
20K → Half509+41#7991#7950
Half → 25K30615-585#7950#8535
25K → 30K86703-617#8535#9152
30K → 20M18626+160#9152#8992
20M → 21M11678+38#8992#8954
21M → 35K9643+53#8954#8901
35K → 23M120107+13#8901#8888
23M → 24M7092-22#8888#8910
24M → 40K8463+21#8910#8889
40K → 25.2M3145-14#8889#8903
25.2M → Finish83830#8903#8903
TOTALS12132871-1658
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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