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BOSTON MARATHON 2025

Kellen Sandvik

Bib: 2590•M

NY

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 18%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:39
Rank: #1089
Start → 5K
18:39 | 6:00/mi
10K· 6.21 mi
37:27
Rank: #1156 (-67)
5K → 10K
18:48 | 6:03/mi
15K· 9.32 mi
56:11
Rank: #1138 (+18)
10K → 15K
18:44 | 6:02/mi
20K· 12.43 mi
1:15:02
Rank: #1096 (+42)
15K → 20K
18:51 | 6:04/mi
Half· 13.11 mi
1:19:10
Rank: #1103 (-7)
20K → Half
4:08 | 6:03/mi
25K· 15.53 mi
1:34:10
Rank: #1133 (-30)
Half → 25K
15:00 | 6:11/mi
30K· 18.64 mi
1:54:07
Rank: #1203 (-70)
25K → 30K
19:57 | 6:25/mi
20M
2:03:06
Rank: #1246 (-43)
30K → 20M
8:59 | 6:37/mi
21M
2:10:03
Rank: #1252 (-6)
20M → 21M
6:57 | 6:57/mi
35K· 21.75 mi
2:14:46
Rank: #1235 (+17)
21M → 35K
4:43 | 6:18/mi
23M
2:22:54
Rank: #1217 (+18)
35K → 23M
8:08 | 6:30/mi
24M
2:29:21
Rank: #1224 (-7)
23M → 24M
6:27 | 6:27/mi
40K· 24.85 mi
2:34:55
Rank: #1221 (+3)
24M → 40K
5:34 | 6:31/mi
25.2M
2:37:27
Rank: #1228 (-7)
40K → 25.2M
2:32 | 7:21/mi
Finish· 26.22 mi
2:43:58
Rank: #1257 (-29)
25.2M → Finish
6:31 | 6:24/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:19:10
Pace6:02 /mi
2nd Half
Distance13.11 mi
Time1:24:48
Pace6:28 /mi
📊Positive Split: 7.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:1318:396:0018:39
6:00
-
10K
6.21 mi10:39:0137:276:0218:48
6:03
+0:03
15K
9.32 mi10:57:4556:116:0218:44
6:02
-0:01
20K
12.43 mi11:16:361:15:026:0218:51
6:04
+0:02
Half
13.11 mi11:20:441:19:106:024:08
6:03
-0:01
25K
15.53 mi11:35:441:34:106:0415:00
6:11
+0:08
30K
18.64 mi11:55:411:54:076:0719:57
6:25
+0:14
20M
20.00 mi12:04:402:03:066:098:59
6:37
+0:12
21M
21.00 mi12:11:372:10:036:126:57
6:57
+0:20
35K
21.75 mi12:16:202:14:466:124:43
6:18
-0:39
23M
23.00 mi12:24:282:22:546:138:08
6:30
+0:12
24M
24.00 mi12:30:552:29:216:136:27
6:27
-0:03
40K
24.85 mi12:36:292:34:556:145:34
6:31
+0:04
25.2M
25.20 mi12:39:012:37:276:152:32
7:21
+0:50
Finish
26.22 mi12:45:322:43:586:156:31
6:24
-0:57

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

6:00 /mi

Average Pace

6:15 /mi

Slowest Pace

7:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:34:10

57% of race

Time at Steady Pace

51:20

31% of race

Time at Slower Pace

18:28

11% of race

Average Pace: 6:15 /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 mi10:20:1318:396:0018:39
6:00
#1089
10K
6.21 mi10:39:0137:276:0218:48
6:03
#1156
15K
9.32 mi10:57:4556:116:0218:44
6:02
#1138
20K
12.43 mi11:16:361:15:026:0218:51
6:04
#1096
Half
13.11 mi11:20:441:19:106:024:08
6:03
#1103
25K
15.53 mi11:35:441:34:106:0415:00
6:11
#1133
30K
18.64 mi11:55:411:54:076:0719:57
6:25
#1203
20M
20.00 mi12:04:402:03:066:098:59
6:37
#1246
21M
21.00 mi12:11:372:10:036:126:57
6:57
#1252
35K
21.75 mi12:16:202:14:466:124:43
6:18
#1235
23M
23.00 mi12:24:282:22:546:138:08
6:30
#1217
24M
24.00 mi12:30:552:29:216:136:27
6:27
#1224
40K
24.85 mi12:36:292:34:556:145:34
6:31
#1221
25.2M
25.20 mi12:39:012:37:276:152:32
7:21
#1228
Finish
26.22 mi12:45:322:43:586:156:31
6:24
#1257
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1089103010301131(Top 4%)1070(Top 7%)1070(Top 19%)
10K6.21 mi3.10 mi1156-671093-631093-631279(Top 5%)1214(Top 8%)1214(Top 22%)
15K9.32 mi3.11 mi1138+181076+171076+171131(Top 4%)1070(Top 7%)1070(Top 19%)
20K12.43 mi3.11 mi1096+421036+401036+401064(Top 4%)1003(Top 6%)1003(Top 18%)
Half13.11 mi0.68 mi1103-71043-71043-71367(Top 5%)1299(Top 8%)1299(Top 23%)
25K15.53 mi2.42 mi1133-301071-281071-281397(Top 5%)1325(Top 8%)1325(Top 23%)
30K18.64 mi3.11 mi1203-701135-641135-641627(Top 6%)1542(Top 10%)1542(Top 27%)
20M20.00 mi1.36 mi1246-431176-411176-412047(Top 7%)1936(Top 12%)1936(Top 34%)
21M21.00 mi1.00 mi1252-61181-51181-52035(Top 7%)1910(Top 12%)1910(Top 34%)
35K21.75 mi0.75 mi1235+171164+171164+171600(Top 6%)1500(Top 9%)1500(Top 27%)
23M23.00 mi1.25 mi1217+181145+191145+191430(Top 5%)1346(Top 8%)1346(Top 24%)
24M24.00 mi1.00 mi1224-71151-61151-61830(Top 6%)1699(Top 11%)1699(Top 30%)
40K24.85 mi0.85 mi1221+31148+31148+31620(Top 6%)1496(Top 9%)1496(Top 27%)
25.2M25.20 mi0.35 mi1228-71155-71155-72653(Top 9%)2355(Top 15%)2355(Top 42%)
Finish26.22 mi1.02 mi1257-291182-271182-272270(Top 8%)2073(Top 13%)2073(Top 37%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21stories
+97ft-345ft

Overall

1131

Males

1070

M18-39

1070

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1279

Males

1214

M18-39

1214

10K→15K

6.2 - 9.3 mi

Top 4%
×3stories
+67ft-78ft

Overall

1131

Males

1070

M18-39

1070

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

1064

Males

1003

M18-39

1003

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1367

Males

1299

M18-39

1299

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1397

Males

1325

M18-39

1325

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1627

Males

1542

M18-39

1542

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

2047

Males

1936

M18-39

1936

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

2035

Males

1910

M18-39

1910

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1600

Males

1500

M18-39

1500

35K→23M

21.8 - 23.0 mi

Top 5%
×5stories
+23ft-63ft

Overall

1430

Males

1346

M18-39

1346

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1830

Males

1699

M18-39

1699

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1620

Males

1496

M18-39

1496

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2653

Males

2355

M18-39

2355

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2270

Males

2073

M18-39

2073

Passing Analysis

Category:
Athletes Passed
360
Passed By
528
Net Change
-168
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1089
5K → 10K3198-67#1089#1156
10K → 15K4224+18#1156#1138
15K → 20K5917+42#1138#1096
20K → Half411-7#1096#1103
Half → 25K2555-30#1103#1133
25K → 30K2999-70#1133#1203
30K → 20M2265-43#1203#1246
20M → 21M2127-6#1246#1252
21M → 35K247+17#1252#1235
35K → 23M4527+18#1235#1217
23M → 24M1623-7#1217#1224
24M → 40K2623+3#1224#1221
40K → 25.2M714-7#1221#1228
25.2M → Finish938-29#1228#1257
TOTALS360528-168
📊

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