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BOSTON MARATHON 2025

Justus Olson

Bib: 2145•M

MN

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 11%
Gender (Male)
#0 / 16105
Top 19%
Division (M18-39)
#0 / 5642
Top 41%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:30
Rank: #4563
Start → 5K
20:30 | 6:36/mi
10K· 6.21 mi
41:11
Rank: #4708 (-145)
5K → 10K
20:41 | 6:39/mi
15K· 9.32 mi
1:02:35
Rank: #5382 (-674)
10K → 15K
21:24 | 6:53/mi
20K· 12.43 mi
1:23:18
Rank: #5013 (+369)
15K → 20K
20:43 | 6:40/mi
Half· 13.11 mi
1:27:43
Rank: #4914 (+99)
20K → Half
4:25 | 6:28/mi
25K· 15.53 mi
1:44:00
Rank: #4738 (+176)
Half → 25K
16:17 | 6:43/mi
30K· 18.64 mi
2:05:07
Rank: #4405 (+333)
25K → 30K
21:07 | 6:48/mi
20M
2:14:19
Rank: #4225 (+180)
30K → 20M
9:12 | 6:46/mi
21M
2:21:26
Rank: #4101 (+124)
20M → 21M
7:07 | 7:07/mi
35K· 21.75 mi
2:26:09
Rank: #3945 (+156)
21M → 35K
4:43 | 6:18/mi
23M
2:34:26
Rank: #3775 (+170)
35K → 23M
8:17 | 6:37/mi
24M
2:40:45
Rank: #3588 (+187)
23M → 24M
6:19 | 6:19/mi
40K· 24.85 mi
2:46:08
Rank: #3411 (+177)
24M → 40K
5:23 | 6:18/mi
25.2M
2:48:31
Rank: #3349 (+62)
40K → 25.2M
2:23 | 6:55/mi
Finish· 26.22 mi
2:54:41
Rank: #3170 (+179)
25.2M → Finish
6:10 | 6:03/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:27:43
Pace6:41 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:26:58
Pace6:38 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:1620:306:3620:30
6:36
-
10K
6.21 mi10:41:5741:116:3820:41
6:39
+0:03
15K
9.32 mi11:03:211:02:356:4321:24
6:53
+0:14
20K
12.43 mi11:24:041:23:186:4220:43
6:40
-0:13
Half
13.11 mi11:28:291:27:436:414:25
6:28
-0:12
25K
15.53 mi11:44:461:44:006:4216:17
6:43
+0:15
30K
18.64 mi12:05:532:05:076:4321:07
6:48
+0:05
20M
20.00 mi12:15:052:14:196:439:12
6:46
-0:02
21M
21.00 mi12:22:122:21:266:447:07
7:07
+0:21
35K
21.75 mi12:26:552:26:096:434:43
6:18
-0:49
23M
23.00 mi12:35:122:34:266:438:17
6:37
+0:19
24M
24.00 mi12:41:312:40:456:426:19
6:19
-0:18
40K
24.85 mi12:46:542:46:086:415:23
6:18
-0:01
25.2M
25.20 mi12:49:172:48:316:412:23
6:55
+0:37
Finish
26.22 mi12:55:272:54:416:406:10
6:03
-0:52

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

6:03 /mi

Average Pace

6:40 /mi

Slowest Pace

7:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:16:28

44% of race

Time at Steady Pace

1:38:13

56% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:40 /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 mi10:21:1620:306:3620:30
6:36
#4563
10K
6.21 mi10:41:5741:116:3820:41
6:39
#4708
15K
9.32 mi11:03:211:02:356:4321:24
6:53
#5382
20K
12.43 mi11:24:041:23:186:4220:43
6:40
#5013
Half
13.11 mi11:28:291:27:436:414:25
6:28
#4914
25K
15.53 mi11:44:461:44:006:4216:17
6:43
#4738
30K
18.64 mi12:05:532:05:076:4321:07
6:48
#4405
20M
20.00 mi12:15:052:14:196:439:12
6:46
#4225
21M
21.00 mi12:22:122:21:266:447:07
7:07
#4101
35K
21.75 mi12:26:552:26:096:434:43
6:18
#3945
23M
23.00 mi12:35:122:34:266:438:17
6:37
#3775
24M
24.00 mi12:41:312:40:456:426:19
6:19
#3588
40K
24.85 mi12:46:542:46:086:415:23
6:18
#3411
25.2M
25.20 mi12:49:172:48:316:412:23
6:55
#3349
Finish
26.22 mi12:55:272:54:416:406:10
6:03
#3170
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4563428642866840(Top 24%)6128(Top 38%)6128(Top 109%)
10K6.21 mi3.10 mi4708-1454408-1224408-1224925(Top 17%)4595(Top 29%)4595(Top 81%)
15K9.32 mi3.11 mi5382-6744982-5744982-5746840(Top 24%)6128(Top 38%)6128(Top 109%)
20K12.43 mi3.11 mi5013+3694666+3164666+3164137(Top 15%)3879(Top 24%)3879(Top 69%)
Half13.11 mi0.68 mi4914+994579+874579+873476(Top 12%)3292(Top 20%)3292(Top 58%)
25K15.53 mi2.42 mi4738+1764412+1674412+1674235(Top 15%)3931(Top 24%)3931(Top 70%)
30K18.64 mi3.11 mi4405+3334116+2964116+2963414(Top 12%)3180(Top 20%)3180(Top 56%)
20M20.00 mi1.36 mi4225+1803952+1643952+1642767(Top 10%)2592(Top 16%)2592(Top 46%)
21M21.00 mi1.00 mi4101+1243835+1173835+1172746(Top 10%)2549(Top 16%)2549(Top 45%)
35K21.75 mi0.75 mi3945+1563690+1453690+1451637(Top 6%)1537(Top 10%)1537(Top 27%)
23M23.00 mi1.25 mi3775+1703533+1573533+1571897(Top 7%)1774(Top 11%)1774(Top 31%)
24M24.00 mi1.00 mi3588+1873363+1703363+1701364(Top 5%)1276(Top 8%)1276(Top 23%)
40K24.85 mi0.85 mi3411+1773203+1603203+160968(Top 3%)907(Top 6%)907(Top 16%)
25.2M25.20 mi0.35 mi3349+623142+613142+611262(Top 4%)1164(Top 7%)1164(Top 21%)
Finish26.22 mi1.02 mi3170+1792980+1622980+1621066(Top 4%)1000(Top 6%)1000(Top 18%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21stories
+97ft-345ft

Overall

6840

Males

6128

M18-39

6128

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4925

Males

4595

M18-39

4595

10K→15K

6.2 - 9.3 mi

Top 24%
×3stories
+67ft-78ft

Overall

6840

Males

6128

M18-39

6128

15K→20K

9.3 - 12.4 mi

Top 15%
×5stories
+106ft-86ft

Overall

4137

Males

3879

M18-39

3879

20K→Half

12.4 - 13.1 mi

Top 12%
×2stories
+19ft-37ft

Overall

3476

Males

3292

M18-39

3292

Half→25K

13.1 - 15.5 mi

Top 15%
×4stories
+66ft-88ft

Overall

4235

Males

3931

M18-39

3931

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3414

Males

3180

M18-39

3180

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2767

Males

2592

M18-39

2592

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2746

Males

2549

M18-39

2549

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1637

Males

1537

M18-39

1537

35K→23M

21.8 - 23.0 mi

Top 7%
×5stories
+23ft-63ft

Overall

1897

Males

1774

M18-39

1774

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1364

Males

1276

M18-39

1276

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

968

Males

907

M18-39

907

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1262

Males

1164

M18-39

1164

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

1066

Males

1000

M18-39

1000

Passing Analysis

Category:
Athletes Passed
2415
Passed By
1022
Net Change
+1393
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4563
5K → 10K112257-145#4563#4708
10K → 15K21695-674#4708#5382
15K → 20K3789+369#5382#5013
20K → Half1001+99#5013#4914
Half → 25K19721+176#4914#4738
25K → 30K34815+333#4738#4405
30K → 20M1855+180#4405#4225
20M → 21M13410+124#4225#4101
21M → 35K1560+156#4101#3945
35K → 23M1744+170#3945#3775
23M → 24M1881+187#3775#3588
24M → 40K1781+177#3588#3411
40K → 25.2M642+62#3411#3349
25.2M → Finish1801+179#3349#3170
TOTALS24151022+1393
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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