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BOSTON MARATHON 2025

Carson Olofson

Bib: 1874•M

IL

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 4%
Gender (Male)
#0 / 16105
Top 7%
Division (M18-39)
#0 / 5642
Top 16%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:08
Rank: #1644
Start → 5K
19:08 | 6:10/mi
10K· 6.21 mi
38:21
Rank: #1731 (-87)
5K → 10K
19:13 | 6:11/mi
15K· 9.32 mi
57:39
Rank: #1787 (-56)
10K → 15K
19:18 | 6:13/mi
20K· 12.43 mi
1:16:46
Rank: #1660 (+127)
15K → 20K
19:07 | 6:09/mi
Half· 13.11 mi
1:20:57
Rank: #1648 (+12)
20K → Half
4:11 | 6:08/mi
25K· 15.53 mi
1:35:58
Rank: #1583 (+65)
Half → 25K
15:01 | 6:12/mi
30K· 18.64 mi
1:55:28
Rank: #1458 (+125)
25K → 30K
19:30 | 6:17/mi
20M
2:03:56
Rank: #1377 (+81)
30K → 20M
8:28 | 6:14/mi
21M
2:10:26
Rank: #1309 (+68)
20M → 21M
6:30 | 6:30/mi
35K· 21.75 mi
2:14:53
Rank: #1259 (+50)
21M → 35K
4:27 | 5:57/mi
23M
2:22:38
Rank: #1175 (+84)
35K → 23M
7:45 | 6:11/mi
24M
2:28:44
Rank: #1136 (+39)
23M → 24M
6:06 | 6:06/mi
40K· 24.85 mi
2:34:10
Rank: #1124 (+12)
24M → 40K
5:26 | 6:21/mi
25.2M
2:36:37
Rank: #1123 (+1)
40K → 25.2M
2:27 | 7:06/mi
Finish· 26.22 mi
2:43:05
Rank: #1126 (-3)
25.2M → Finish
6:28 | 6:21/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:20:57
Pace6:10 /mi
2nd Half
Distance13.11 mi
Time1:22:08
Pace6:16 /mi
📊Positive Split: 1.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:5119:086:1019:08
6:10
-
10K
6.21 mi10:40:0438:216:1019:13
6:11
+0:01
15K
9.32 mi10:59:2257:396:1119:18
6:13
+0:02
20K
12.43 mi11:18:291:16:466:1119:07
6:09
-0:04
Half
13.11 mi11:22:401:20:576:104:11
6:08
-0:01
25K
15.53 mi11:37:411:35:586:1115:01
6:12
+0:04
30K
18.64 mi11:57:111:55:286:1219:30
6:17
+0:05
20M
20.00 mi12:05:392:03:566:128:28
6:14
-0:03
21M
21.00 mi12:12:092:10:266:136:30
6:30
+0:16
35K
21.75 mi12:16:362:14:536:124:27
5:57
-0:33
23M
23.00 mi12:24:212:22:386:127:45
6:11
+0:14
24M
24.00 mi12:30:272:28:446:126:06
6:06
-0:05
40K
24.85 mi12:35:532:34:106:125:26
6:21
+0:15
25.2M
25.20 mi12:38:202:36:376:132:27
7:06
+0:45
Finish
26.22 mi12:44:482:43:056:136:28
6:21
-0:45

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

5:57 /mi

Average Pace

6:13 /mi

Slowest Pace

7:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:40:38

98% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

2:27

2% of race

Average Pace: 6:13 /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 mi10:20:5119:086:1019:08
6:10
#1644
10K
6.21 mi10:40:0438:216:1019:13
6:11
#1731
15K
9.32 mi10:59:2257:396:1119:18
6:13
#1787
20K
12.43 mi11:18:291:16:466:1119:07
6:09
#1660
Half
13.11 mi11:22:401:20:576:104:11
6:08
#1648
25K
15.53 mi11:37:411:35:586:1115:01
6:12
#1583
30K
18.64 mi11:57:111:55:286:1219:30
6:17
#1458
20M
20.00 mi12:05:392:03:566:128:28
6:14
#1377
21M
21.00 mi12:12:092:10:266:136:30
6:30
#1309
35K
21.75 mi12:16:362:14:536:124:27
5:57
#1259
23M
23.00 mi12:24:212:22:386:127:45
6:11
#1175
24M
24.00 mi12:30:272:28:446:126:06
6:06
#1136
40K
24.85 mi12:35:532:34:106:125:26
6:21
#1124
25.2M
25.20 mi12:38:202:36:376:132:27
7:06
#1123
Finish
26.22 mi12:44:482:43:056:136:28
6:21
#1126
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1644156215621906(Top 7%)1815(Top 11%)1815(Top 32%)
10K6.21 mi3.10 mi1731-871646-841646-841823(Top 6%)1731(Top 11%)1731(Top 31%)
15K9.32 mi3.11 mi1787-561699-531699-531906(Top 7%)1815(Top 11%)1815(Top 32%)
20K12.43 mi3.11 mi1660+1271576+1231576+1231377(Top 5%)1304(Top 8%)1304(Top 23%)
Half13.11 mi0.68 mi1648+121564+121564+121623(Top 6%)1542(Top 10%)1542(Top 27%)
25K15.53 mi2.42 mi1583+651500+641500+641418(Top 5%)1346(Top 8%)1346(Top 24%)
30K18.64 mi3.11 mi1458+1251378+1221378+1221135(Top 4%)1069(Top 7%)1069(Top 19%)
20M20.00 mi1.36 mi1377+811301+771301+77803(Top 3%)758(Top 5%)758(Top 13%)
21M21.00 mi1.00 mi1309+681235+661235+66688(Top 2%)651(Top 4%)651(Top 12%)
35K21.75 mi0.75 mi1259+501186+491186+49635(Top 2%)594(Top 4%)594(Top 11%)
23M23.00 mi1.25 mi1175+841107+791107+79664(Top 2%)627(Top 4%)627(Top 11%)
24M24.00 mi1.00 mi1136+391070+371070+37769(Top 3%)723(Top 4%)723(Top 13%)
40K24.85 mi0.85 mi1124+121059+111059+111096(Top 4%)1025(Top 6%)1025(Top 18%)
25.2M25.20 mi0.35 mi1123+11058+11058+11758(Top 6%)1597(Top 10%)1597(Top 28%)
Finish26.22 mi1.02 mi1126-31061-31061-32055(Top 7%)1882(Top 12%)1882(Top 33%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21stories
+97ft-345ft

Overall

1906

Males

1815

M18-39

1815

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1823

Males

1731

M18-39

1731

10K→15K

6.2 - 9.3 mi

Top 7%
×3stories
+67ft-78ft

Overall

1906

Males

1815

M18-39

1815

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1377

Males

1304

M18-39

1304

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1623

Males

1542

M18-39

1542

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1418

Males

1346

M18-39

1346

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1135

Males

1069

M18-39

1069

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

803

Males

758

M18-39

758

20M→21M

20.0 - 21.0 mi

Top 2%
×8stories
+106ft-24ft

Overall

688

Males

651

M18-39

651

21M→35K

21.0 - 21.8 mi

Top 2%
×7stories
+17ft-86ft

Overall

635

Males

594

M18-39

594

35K→23M

21.8 - 23.0 mi

Top 2%
×5stories
+23ft-63ft

Overall

664

Males

627

M18-39

627

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

769

Males

723

M18-39

723

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1096

Males

1025

M18-39

1025

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1758

Males

1597

M18-39

1597

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2stories
+22ft-21ft

Overall

2055

Males

1882

M18-39

1882

Passing Analysis

Category:
Athletes Passed
836
Passed By
318
Net Change
+518
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1644
5K → 10K49136-87#1644#1731
10K → 15K4096-56#1731#1787
15K → 20K1325+127#1787#1660
20K → Half208+12#1660#1648
Half → 25K716+65#1648#1583
25K → 30K13914+125#1583#1458
30K → 20M832+81#1458#1377
20M → 21M691+68#1377#1309
21M → 35K500+50#1309#1259
35K → 23M862+84#1259#1175
23M → 24M467+39#1175#1136
24M → 40K2210+12#1136#1124
40K → 25.2M87+1#1124#1123
25.2M → Finish2124-3#1123#1126
TOTALS836318+518
📊

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