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BOSTON MARATHON 2025

Casey Sands

Bib: 32160•F

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:24
Rank: #21619
Start → 5K
27:24 | 8:49/mi
10K· 6.21 mi
55:37
Rank: #22210 (-591)
5K → 10K
28:13 | 9:05/mi
15K· 9.32 mi
1:23:27
Rank: #22091 (+119)
10K → 15K
27:50 | 8:58/mi
20K· 12.43 mi
1:51:24
Rank: #21774 (+317)
15K → 20K
27:57 | 9:00/mi
Half· 13.11 mi
1:57:18
Rank: #21683 (+91)
20K → Half
5:54 | 8:39/mi
25K· 15.53 mi
2:19:15
Rank: #21404 (+279)
Half → 25K
21:57 | 9:03/mi
30K· 18.64 mi
2:48:18
Rank: #21005 (+399)
25K → 30K
29:03 | 9:21/mi
20M
3:01:33
Rank: #20930 (+75)
30K → 20M
13:15 | 9:45/mi
21M
3:11:32
Rank: #20729 (+201)
20M → 21M
9:59 | 9:59/mi
35K· 21.75 mi
3:18:33
Rank: #20704 (+25)
21M → 35K
7:01 | 9:23/mi
23M
3:30:35
Rank: #20624 (+80)
35K → 23M
12:02 | 9:37/mi
24M
3:40:02
Rank: #20583 (+41)
23M → 24M
9:27 | 9:27/mi
40K· 24.85 mi
3:48:19
Rank: #20564 (+19)
24M → 40K
8:17 | 9:41/mi
25.2M
3:51:54
Rank: #20546 (+18)
40K → 25.2M
3:35 | 10:23/mi
Finish· 26.22 mi
4:00:38
Rank: #20445 (+101)
25.2M → Finish
8:44 | 8:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:18
Pace8:57 /mi
2nd Half
Distance13.11 mi
Time2:03:20
Pace9:24 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:2727:248:4927:24
8:49
-
10K
6.21 mi12:21:4055:378:5728:13
9:05
+0:16
15K
9.32 mi12:49:301:23:278:5727:50
8:58
-0:07
20K
12.43 mi13:17:271:51:248:5827:57
9:00
+0:02
Half
13.11 mi13:23:211:57:188:575:54
8:39
-0:21
25K
15.53 mi13:45:182:19:158:5821:57
9:03
+0:24
30K
18.64 mi14:14:212:48:189:0229:03
9:21
+0:18
20M
20.00 mi14:27:363:01:339:0513:15
9:45
+0:24
21M
21.00 mi14:37:353:11:329:079:59
9:59
+0:14
35K
21.75 mi14:44:363:18:339:087:01
9:23
-0:36
23M
23.00 mi14:56:383:30:359:0912:02
9:37
+0:14
24M
24.00 mi15:06:053:40:029:109:27
9:27
-0:10
40K
24.85 mi15:14:223:48:199:118:17
9:41
+0:14
25.2M
25.20 mi15:17:573:51:549:123:35
10:23
+0:42
Finish
26.22 mi15:26:414:00:389:118:44
8:34
-1:49

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

8:34 /mi

Average Pace

9:11 /mi

Slowest Pace

10:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:27:59

61% of race

Time at Steady Pace

45:31

19% of race

Time at Slower Pace

47:08

20% of race

Average Pace: 9:11 /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 mi11:53:2727:248:4927:24
8:49
#21619
10K
6.21 mi12:21:4055:378:5728:13
9:05
#22210
15K
9.32 mi12:49:301:23:278:5727:50
8:58
#22091
20K
12.43 mi13:17:271:51:248:5827:57
9:00
#21774
Half
13.11 mi13:23:211:57:188:575:54
8:39
#21683
25K
15.53 mi13:45:182:19:158:5821:57
9:03
#21404
30K
18.64 mi14:14:212:48:189:0229:03
9:21
#21005
20M
20.00 mi14:27:363:01:339:0513:15
9:45
#20930
21M
21.00 mi14:37:353:11:329:079:59
9:59
#20729
35K
21.75 mi14:44:363:18:339:087:01
9:23
#20704
23M
23.00 mi14:56:383:30:359:0912:02
9:37
#20624
24M
24.00 mi15:06:053:40:029:109:27
9:27
#20583
40K
24.85 mi15:14:223:48:199:118:17
9:41
#20564
25.2M
25.20 mi15:17:573:51:549:123:35
10:23
#20546
Finish
26.22 mi15:26:414:00:389:118:44
8:34
#20445
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi216198415841521853(Top 77%)8465(Top 69%)8465(Top 155%)
10K6.21 mi3.10 mi22210-5918729-3148729-31422752(Top 80%)8998(Top 74%)8998(Top 165%)
15K9.32 mi3.11 mi22091+1198649+808649+8021853(Top 77%)8465(Top 69%)8465(Top 155%)
20K12.43 mi3.11 mi21774+3178480+1698480+16920954(Top 74%)8029(Top 66%)8029(Top 147%)
Half13.11 mi0.68 mi21683+918428+528428+5220112(Top 71%)7552(Top 62%)7552(Top 138%)
25K15.53 mi2.42 mi21404+2798273+1558273+15520158(Top 71%)7625(Top 62%)7625(Top 139%)
30K18.64 mi3.11 mi21005+3998090+1838090+18319357(Top 68%)7320(Top 60%)7320(Top 134%)
20M20.00 mi1.36 mi20930+758056+348056+3420132(Top 71%)7872(Top 64%)7872(Top 144%)
21M21.00 mi1.00 mi20729+2017974+827974+8218254(Top 64%)6925(Top 57%)6925(Top 127%)
35K21.75 mi0.75 mi20704+257974797419894(Top 70%)7925(Top 65%)7925(Top 145%)
23M23.00 mi1.25 mi20624+807955+197955+1919134(Top 67%)7578(Top 62%)7578(Top 139%)
24M24.00 mi1.00 mi20583+417953+27953+219452(Top 68%)7802(Top 64%)7802(Top 143%)
40K24.85 mi0.85 mi20564+197957-47957-419448(Top 68%)7864(Top 64%)7864(Top 144%)
25.2M25.20 mi0.35 mi20546+187957795718658(Top 66%)7469(Top 61%)7469(Top 137%)
Finish26.22 mi1.02 mi20445+1017914+437914+4316715(Top 59%)6420(Top 53%)6420(Top 117%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21stories
+97ft-345ft

Overall

21853

Females

8465

F18-39

8465

5K→10K

3.1 - 6.2 mi

Top 80%
×5stories
+79ft-138ft

Overall

22752

Females

8998

F18-39

8998

10K→15K

6.2 - 9.3 mi

Top 77%
×3stories
+67ft-78ft

Overall

21853

Females

8465

F18-39

8465

15K→20K

9.3 - 12.4 mi

Top 74%
×5stories
+106ft-86ft

Overall

20954

Females

8029

F18-39

8029

20K→Half

12.4 - 13.1 mi

Top 71%
×2stories
+19ft-37ft

Overall

20112

Females

7552

F18-39

7552

Half→25K

13.1 - 15.5 mi

Top 71%
×4stories
+66ft-88ft

Overall

20158

Females

7625

F18-39

7625

25K→30K

15.5 - 18.6 mi

Top 68%
×9stories
+181ft-148ft

Overall

19357

Females

7320

F18-39

7320

30K→20M

18.6 - 20.0 mi

Top 71%
×5stories
+64ft-50ft

Overall

20132

Females

7872

F18-39

7872

20M→21M

20.0 - 21.0 mi

Top 64%
×8stories
+106ft-24ft

Overall

18254

Females

6925

F18-39

6925

21M→35K

21.0 - 21.8 mi

Top 70%
×7stories
+17ft-86ft

Overall

19894

Females

7925

F18-39

7925

35K→23M

21.8 - 23.0 mi

Top 67%
×5stories
+23ft-63ft

Overall

19134

Females

7578

F18-39

7578

23M→24M

23.0 - 24.0 mi

Top 68%
×6stories
+12ft-82ft

Overall

19452

Females

7802

F18-39

7802

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

19448

Females

7864

F18-39

7864

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

18658

Females

7469

F18-39

7469

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2stories
+22ft-21ft

Overall

16715

Females

6420

F18-39

6420

Passing Analysis

Category:
Athletes Passed
2341
Passed By
1167
Net Change
+1174
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21619
5K → 10K83674-591#21619#22210
10K → 15K242123+119#22210#22091
15K → 20K35841+317#22091#21774
20K → Half954+91#21774#21683
Half → 25K30021+279#21683#21404
25K → 30K43132+399#21404#21005
30K → 20M13459+75#21005#20930
20M → 21M21615+201#20930#20729
21M → 35K6944+25#20729#20704
35K → 23M12141+80#20704#20624
23M → 24M7736+41#20624#20583
24M → 40K6647+19#20583#20564
40K → 25.2M3719+18#20564#20546
25.2M → Finish11211+101#20546#20445
TOTALS23411167+1174
📊

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