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BOSTON MARATHON 2025

Sandra Polsinelli

Bib: 23669•F

OR

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F45-49)
#0 / 1813
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
30:13
Rank: #24910
Start → 5K
30:13 | 9:44/mi
10K· 6.21 mi
1:00:23
Rank: #24774 (+136)
5K → 10K
30:10 | 9:43/mi
15K· 9.32 mi
1:30:38
Rank: #24640 (+134)
10K → 15K
30:15 | 9:44/mi
20K· 12.43 mi
2:00:40
Rank: #24330 (+310)
15K → 20K
30:02 | 9:40/mi
Half· 13.11 mi
2:07:03
Rank: #24271 (+59)
20K → Half
6:23 | 9:21/mi
25K· 15.53 mi
2:30:41
Rank: #23978 (+293)
Half → 25K
23:38 | 9:45/mi
30K· 18.64 mi
3:02:11
Rank: #23600 (+378)
25K → 30K
31:30 | 10:08/mi
20M
3:15:50
Rank: #23411 (+189)
30K → 20M
13:39 | 10:03/mi
21M
3:26:07
Rank: #23188 (+223)
20M → 21M
10:17 | 10:17/mi
35K· 21.75 mi
3:33:24
Rank: #23114 (+74)
21M → 35K
7:17 | 9:44/mi
23M
3:45:39
Rank: #22923 (+191)
35K → 23M
12:15 | 9:47/mi
24M
3:55:12
Rank: #22778 (+145)
23M → 24M
9:33 | 9:33/mi
40K· 24.85 mi
4:03:28
Rank: #22655 (+123)
24M → 40K
8:16 | 9:40/mi
25.2M
4:07:01
Rank: #22603 (+52)
40K → 25.2M
3:33 | 10:18/mi
Finish· 26.22 mi
4:15:59
Rank: #22478 (+125)
25.2M → Finish
8:58 | 8:48/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:07:03
Pace9:41 /mi
2nd Half
Distance13.11 mi
Time2:08:56
Pace9:50 /mi
📊Positive Split: 1.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:30:1830:139:4430:13
9:44
-
10K
6.21 mi12:00:281:00:239:4330:10
9:43
-0:01
15K
9.32 mi12:30:431:30:389:4330:15
9:44
+0:01
20K
12.43 mi13:00:452:00:409:4330:02
9:40
-0:04
Half
13.11 mi13:07:082:07:039:416:23
9:21
-0:19
25K
15.53 mi13:30:462:30:419:4223:38
9:45
+0:24
30K
18.64 mi14:02:163:02:119:4631:30
10:08
+0:23
20M
20.00 mi14:15:553:15:509:4713:39
10:03
-0:05
21M
21.00 mi14:26:123:26:079:4910:17
10:17
+0:14
35K
21.75 mi14:33:293:33:249:497:17
9:44
-0:33
23M
23.00 mi14:45:443:45:399:4912:15
9:47
+0:03
24M
24.00 mi14:55:173:55:129:489:33
9:33
-0:14
40K
24.85 mi15:03:334:03:289:488:16
9:40
+0:07
25.2M
25.20 mi15:07:064:07:019:483:33
10:18
+0:38
Finish
26.22 mi15:16:044:15:599:468:58
8:48
-1:30

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

8:48 /mi

Average Pace

9:46 /mi

Slowest Pace

10:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:03:12

25% of race

Time at Steady Pace

3:12:47

75% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:46 /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 mi11:30:1830:139:4430:13
9:44
#24910
10K
6.21 mi12:00:281:00:239:4330:10
9:43
#24774
15K
9.32 mi12:30:431:30:389:4330:15
9:44
#24640
20K
12.43 mi13:00:452:00:409:4330:02
9:40
#24330
Half
13.11 mi13:07:082:07:039:416:23
9:21
#24271
25K
15.53 mi13:30:462:30:419:4223:38
9:45
#23978
30K
18.64 mi14:02:163:02:119:4631:30
10:08
#23600
20M
20.00 mi14:15:553:15:509:4713:39
10:03
#23411
21M
21.00 mi14:26:123:26:079:4910:17
10:17
#23188
35K
21.75 mi14:33:293:33:249:497:17
9:44
#23114
23M
23.00 mi14:45:443:45:399:4912:15
9:47
#22923
24M
24.00 mi14:55:173:55:129:489:33
9:33
#22778
40K
24.85 mi15:03:334:03:289:488:16
9:40
#22655
25.2M
25.20 mi15:07:064:07:019:483:33
10:18
#22603
Finish
26.22 mi15:16:044:15:599:468:58
8:48
#22478
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi24910101621016224388(Top 86%)9892(Top 81%)9892(Top 546%)
10K6.21 mi3.10 mi24774+13610102+6010102+6024649(Top 87%)10046(Top 82%)10046(Top 554%)
15K9.32 mi3.11 mi24640+13410034+6810034+6824388(Top 86%)9892(Top 81%)9892(Top 546%)
20K12.43 mi3.11 mi24330+3109880+1549880+15423396(Top 82%)9364(Top 77%)9364(Top 516%)
Half13.11 mi0.68 mi24271+599849+319849+3123149(Top 81%)9232(Top 75%)9232(Top 509%)
25K15.53 mi2.42 mi23978+2939685+1649685+16422638(Top 80%)9004(Top 74%)9004(Top 497%)
30K18.64 mi3.11 mi23600+3789512+1739512+17322029(Top 78%)8791(Top 72%)8791(Top 485%)
20M20.00 mi1.36 mi23411+1899422+909422+9021119(Top 74%)8425(Top 69%)8425(Top 465%)
21M21.00 mi1.00 mi23188+2239327+959327+9519344(Top 68%)7531(Top 62%)7531(Top 415%)
35K21.75 mi0.75 mi23114+749292+359292+3521149(Top 74%)8591(Top 70%)8591(Top 474%)
23M23.00 mi1.25 mi22923+1919224+689224+6819767(Top 70%)7932(Top 65%)7932(Top 438%)
24M24.00 mi1.00 mi22778+1459158+669158+6619832(Top 70%)8007(Top 65%)8007(Top 442%)
40K24.85 mi0.85 mi22655+1239117+419117+4119387(Top 68%)7839(Top 64%)7839(Top 432%)
25.2M25.20 mi0.35 mi22603+529096+219096+2118347(Top 65%)7335(Top 60%)7335(Top 405%)
Finish26.22 mi1.02 mi22478+1259046+509046+5018088(Top 64%)7145(Top 58%)7145(Top 394%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21stories
+97ft-345ft

Overall

24388

Females

9892

F45-49

9892

5K→10K

3.1 - 6.2 mi

Top 87%
×5stories
+79ft-138ft

Overall

24649

Females

10046

F45-49

10046

10K→15K

6.2 - 9.3 mi

Top 86%
×3stories
+67ft-78ft

Overall

24388

Females

9892

F45-49

9892

15K→20K

9.3 - 12.4 mi

Top 82%
×5stories
+106ft-86ft

Overall

23396

Females

9364

F45-49

9364

20K→Half

12.4 - 13.1 mi

Top 81%
×2stories
+19ft-37ft

Overall

23149

Females

9232

F45-49

9232

Half→25K

13.1 - 15.5 mi

Top 80%
×4stories
+66ft-88ft

Overall

22638

Females

9004

F45-49

9004

25K→30K

15.5 - 18.6 mi

Top 78%
×9stories
+181ft-148ft

Overall

22029

Females

8791

F45-49

8791

30K→20M

18.6 - 20.0 mi

Top 74%
×5stories
+64ft-50ft

Overall

21119

Females

8425

F45-49

8425

20M→21M

20.0 - 21.0 mi

Top 68%
×8stories
+106ft-24ft

Overall

19344

Females

7531

F45-49

7531

21M→35K

21.0 - 21.8 mi

Top 74%
×7stories
+17ft-86ft

Overall

21149

Females

8591

F45-49

8591

35K→23M

21.8 - 23.0 mi

Top 70%
×5stories
+23ft-63ft

Overall

19767

Females

7932

F45-49

7932

23M→24M

23.0 - 24.0 mi

Top 70%
×6stories
+12ft-82ft

Overall

19832

Females

8007

F45-49

8007

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

19387

Females

7839

F45-49

7839

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

18347

Females

7335

F45-49

7335

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2stories
+22ft-21ft

Overall

18088

Females

7145

F45-49

7145

Passing Analysis

Category:
Athletes Passed
2719
Passed By
287
Net Change
+2432
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24910
5K → 10K265129+136#24910#24774
10K → 15K21177+134#24774#24640
15K → 20K32515+310#24640#24330
20K → Half645+59#24330#24271
Half → 25K30411+293#24271#23978
25K → 30K3879+378#23978#23600
30K → 20M1989+189#23600#23411
20M → 21M2263+223#23411#23188
21M → 35K8612+74#23188#23114
35K → 23M1954+191#23114#22923
23M → 24M1516+145#22923#22778
24M → 40K1252+123#22778#22655
40K → 25.2M520+52#22655#22603
25.2M → Finish1305+125#22603#22478
TOTALS2719287+2432
📊

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