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BOSTON MARATHON 2025

Kip Sanford

Bib: 27104•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:24
Rank: #21600
Start → 5K
27:24 | 8:49/mi
10K· 6.21 mi
54:44
Rank: #21487 (+113)
5K → 10K
27:20 | 8:48/mi
15K· 9.32 mi
1:22:58
Rank: #21822 (-335)
10K → 15K
28:14 | 9:05/mi
20K· 12.43 mi
1:51:13
Rank: #21701 (+121)
15K → 20K
28:15 | 9:06/mi
Half· 13.11 mi
1:57:13
Rank: #21646 (+55)
20K → Half
6:00 | 8:48/mi
25K· 15.53 mi
2:20:30
Rank: #21751 (-105)
Half → 25K
23:17 | 9:36/mi
30K· 18.64 mi
2:51:29
Rank: #21748 (+3)
25K → 30K
30:59 | 9:58/mi
20M
3:05:08
Rank: #21705 (+43)
30K → 20M
13:39 | 10:03/mi
21M
3:15:17
Rank: #21527 (+178)
20M → 21M
10:09 | 10:09/mi
35K· 21.75 mi
3:21:55
Rank: #21390 (+137)
21M → 35K
6:38 | 8:52/mi
23M
3:33:55
Rank: #21225 (+165)
35K → 23M
12:00 | 9:35/mi
24M
3:43:11
Rank: #21117 (+108)
23M → 24M
9:16 | 9:16/mi
40K· 24.85 mi
3:51:10
Rank: #21002 (+115)
24M → 40K
7:59 | 9:20/mi
25.2M
3:54:32
Rank: #20920 (+82)
40K → 25.2M
3:22 | 9:46/mi
Finish· 26.22 mi
4:03:27
Rank: #20825 (+95)
25.2M → Finish
8:55 | 8:45/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:13
Pace8:56 /mi
2nd Half
Distance13.11 mi
Time2:06:14
Pace9:38 /mi
📊Positive Split: 7.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:3227:248:4927:24
8:49
-
10K
6.21 mi12:10:5254:448:4927:20
8:48
-0:01
15K
9.32 mi12:39:061:22:588:5428:14
9:05
+0:17
20K
12.43 mi13:07:211:51:138:5728:15
9:06
+0:01
Half
13.11 mi13:13:211:57:138:566:00
8:48
-0:18
25K
15.53 mi13:36:382:20:309:0323:17
9:36
+0:48
30K
18.64 mi14:07:372:51:299:1230:59
9:58
+0:22
20M
20.00 mi14:21:163:05:089:1513:39
10:03
+0:05
21M
21.00 mi14:31:253:15:179:1810:09
10:09
+0:06
35K
21.75 mi14:38:033:21:559:176:38
8:52
-1:17
23M
23.00 mi14:50:033:33:559:1812:00
9:35
+0:43
24M
24.00 mi14:59:193:43:119:189:16
9:16
-0:19
40K
24.85 mi15:07:183:51:109:187:59
9:20
+0:04
25.2M
25.20 mi15:10:403:54:329:183:22
9:46
+0:26
Finish
26.22 mi15:19:354:03:279:188:55
8:45
-1:01

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

8:45 /mi

Average Pace

9:18 /mi

Slowest Pace

10:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:05:18

76% of race

Time at Steady Pace

58:09

24% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:17 /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 mi11:43:3227:248:4927:24
8:49
#21600
10K
6.21 mi12:10:5254:448:4927:20
8:48
#21487
15K
9.32 mi12:39:061:22:588:5428:14
9:05
#21822
20K
12.43 mi13:07:211:51:138:5728:15
9:06
#21701
Half
13.11 mi13:13:211:57:138:566:00
8:48
#21646
25K
15.53 mi13:36:382:20:309:0323:17
9:36
#21751
30K
18.64 mi14:07:372:51:299:1230:59
9:58
#21748
20M
20.00 mi14:21:163:05:089:1513:39
10:03
#21705
21M
21.00 mi14:31:253:15:179:1810:09
10:09
#21527
35K
21.75 mi14:38:033:21:559:176:38
8:52
#21390
23M
23.00 mi14:50:033:33:559:1812:00
9:35
#21225
24M
24.00 mi14:59:193:43:119:189:16
9:16
#21117
40K
24.85 mi15:07:183:51:109:187:59
9:20
#21002
25.2M
25.20 mi15:10:403:54:329:183:22
9:46
#20920
Finish
26.22 mi15:19:354:03:279:188:55
8:45
#20825
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi21600131331313322399(Top 79%)13559(Top 84%)13559(Top 823%)
10K6.21 mi3.10 mi21487+11313097+3613097+3621385(Top 75%)13080(Top 81%)13080(Top 794%)
15K9.32 mi3.11 mi21822-33513258-16113258-16122399(Top 79%)13559(Top 84%)13559(Top 823%)
20K12.43 mi3.11 mi21701+12113203+5513203+5521399(Top 75%)13083(Top 81%)13083(Top 794%)
Half13.11 mi0.68 mi21646+5513182+2113182+2120856(Top 73%)12832(Top 80%)12832(Top 779%)
25K15.53 mi2.42 mi21751-10513219-3713219-3722185(Top 78%)13369(Top 83%)13369(Top 811%)
30K18.64 mi3.11 mi21748+313208+1113208+1121518(Top 76%)12953(Top 80%)12953(Top 786%)
20M20.00 mi1.36 mi21705+4313176+3213176+3221096(Top 74%)12632(Top 78%)12632(Top 767%)
21M21.00 mi1.00 mi21527+17813062+11413062+11418853(Top 66%)11545(Top 72%)11545(Top 701%)
35K21.75 mi0.75 mi21390+13712990+7212990+7217600(Top 62%)10878(Top 68%)10878(Top 660%)
23M23.00 mi1.25 mi21225+16512887+10312887+10319026(Top 67%)11456(Top 71%)11456(Top 695%)
24M24.00 mi1.00 mi21117+10812806+8112806+8118666(Top 66%)11256(Top 70%)11256(Top 683%)
40K24.85 mi0.85 mi21002+11512738+6812738+6818020(Top 63%)10846(Top 67%)10846(Top 658%)
25.2M25.20 mi0.35 mi20920+8212701+3712701+3715911(Top 56%)9848(Top 61%)9848(Top 598%)
Finish26.22 mi1.02 mi20825+9512641+6012641+6017772(Top 63%)10767(Top 67%)10767(Top 653%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21stories
+97ft-345ft

Overall

22399

Males

13559

M55-59

13559

5K→10K

3.1 - 6.2 mi

Top 75%
×5stories
+79ft-138ft

Overall

21385

Males

13080

M55-59

13080

10K→15K

6.2 - 9.3 mi

Top 79%
×3stories
+67ft-78ft

Overall

22399

Males

13559

M55-59

13559

15K→20K

9.3 - 12.4 mi

Top 75%
×5stories
+106ft-86ft

Overall

21399

Males

13083

M55-59

13083

20K→Half

12.4 - 13.1 mi

Top 73%
×2stories
+19ft-37ft

Overall

20856

Males

12832

M55-59

12832

Half→25K

13.1 - 15.5 mi

Top 78%
×4stories
+66ft-88ft

Overall

22185

Males

13369

M55-59

13369

25K→30K

15.5 - 18.6 mi

Top 76%
×9stories
+181ft-148ft

Overall

21518

Males

12953

M55-59

12953

30K→20M

18.6 - 20.0 mi

Top 74%
×5stories
+64ft-50ft

Overall

21096

Males

12632

M55-59

12632

20M→21M

20.0 - 21.0 mi

Top 66%
×8stories
+106ft-24ft

Overall

18853

Males

11545

M55-59

11545

21M→35K

21.0 - 21.8 mi

Top 62%
×7stories
+17ft-86ft

Overall

17600

Males

10878

M55-59

10878

35K→23M

21.8 - 23.0 mi

Top 67%
×5stories
+23ft-63ft

Overall

19026

Males

11456

M55-59

11456

23M→24M

23.0 - 24.0 mi

Top 66%
×6stories
+12ft-82ft

Overall

18666

Males

11256

M55-59

11256

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

18020

Males

10846

M55-59

10846

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

15911

Males

9848

M55-59

9848

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2stories
+22ft-21ft

Overall

17772

Males

10767

M55-59

10767

Passing Analysis

Category:
Athletes Passed
2141
Passed By
1366
Net Change
+775
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21600
5K → 10K332219+113#21600#21487
10K → 15K113448-335#21487#21822
15K → 20K255134+121#21822#21701
20K → Half627+55#21701#21646
Half → 25K116221-105#21646#21751
25K → 30K205202+3#21751#21748
30K → 20M11269+43#21748#21705
20M → 21M1868+178#21705#21527
21M → 35K1414+137#21527#21390
35K → 23M18924+165#21390#21225
23M → 24M12214+108#21225#21117
24M → 40K1216+115#21117#21002
40K → 25.2M842+82#21002#20920
25.2M → Finish1038+95#20920#20825
TOTALS21411366+775
📊

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