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BOSTON MARATHON 2025

Sydney Sansbury

Bib: 29022•F

MA

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
33:58
Rank: #27477
Start → 5K
33:58 | 10:56/mi
10K· 6.21 mi
1:07:02
Rank: #27000 (+477)
5K → 10K
33:04 | 10:39/mi
15K· 9.32 mi
1:39:17
Rank: #26549 (+451)
10K → 15K
32:15 | 10:23/mi
20K· 12.43 mi
2:11:47
Rank: #26167 (+382)
15K → 20K
32:30 | 10:28/mi
Half· 13.11 mi
2:19:02
Rank: #26147 (+20)
20K → Half
7:15 | 10:38/mi
25K· 15.53 mi
2:45:16
Rank: #25934 (+213)
Half → 25K
26:14 | 10:49/mi
30K· 18.64 mi
3:19:57
Rank: #25634 (+300)
25K → 30K
34:41 | 11:10/mi
20M
3:34:57
Rank: #25499 (+135)
30K → 20M
15:00 | 11:02/mi
21M
3:46:24
Rank: #25366 (+133)
20M → 21M
11:27 | 11:27/mi
35K· 21.75 mi
3:54:54
Rank: #25336 (+30)
21M → 35K
8:30 | 11:22/mi
23M
4:08:26
Rank: #25223 (+113)
35K → 23M
13:32 | 10:49/mi
24M
4:19:05
Rank: #25159 (+64)
23M → 24M
10:39 | 10:39/mi
40K· 24.85 mi
4:28:15
Rank: #25096 (+63)
24M → 40K
9:10 | 10:43/mi
25.2M
4:32:14
Rank: #25056 (+40)
40K → 25.2M
3:59 | 11:33/mi
Finish· 26.22 mi
4:41:56
Rank: #24987 (+69)
25.2M → Finish
9:42 | 9:31/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:19:02
Pace10:36 /mi
2nd Half
Distance13.11 mi
Time2:22:54
Pace10:54 /mi
📊Positive Split: 2.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:4933:5810:5633:58
10:56
-
10K
6.21 mi12:25:531:07:0210:4733:04
10:39
-0:17
15K
9.32 mi12:58:081:39:1710:3932:15
10:23
-0:16
20K
12.43 mi13:30:382:11:4710:3632:30
10:28
+0:05
Half
13.11 mi13:37:532:19:0210:367:15
10:38
+0:10
25K
15.53 mi14:04:072:45:1610:3826:14
10:49
+0:11
30K
18.64 mi14:38:483:19:5710:4434:41
11:10
+0:21
20M
20.00 mi14:53:483:34:5710:4515:00
11:02
-0:08
21M
21.00 mi15:05:153:46:2410:4711:27
11:27
+0:25
35K
21.75 mi15:13:453:54:5410:488:30
11:22
-0:05
23M
23.00 mi15:27:174:08:2610:4813:32
10:49
-0:33
24M
24.00 mi15:37:564:19:0510:4810:39
10:39
-0:10
40K
24.85 mi15:47:064:28:1510:489:10
10:43
+0:04
25.2M
25.20 mi15:51:054:32:1410:483:59
11:33
+0:50
Finish
26.22 mi16:00:474:41:5610:469:42
9:31
-2:02

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

9:31 /mi

Average Pace

10:46 /mi

Slowest Pace

11:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:14:27

26% of race

Time at Steady Pace

2:28:52

53% of race

Time at Slower Pace

58:37

21% of race

Average Pace: 10:45 /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 mi11:52:4933:5810:5633:58
10:56
#27477
10K
6.21 mi12:25:531:07:0210:4733:04
10:39
#27000
15K
9.32 mi12:58:081:39:1710:3932:15
10:23
#26549
20K
12.43 mi13:30:382:11:4710:3632:30
10:28
#26167
Half
13.11 mi13:37:532:19:0210:367:15
10:38
#26147
25K
15.53 mi14:04:072:45:1610:3826:14
10:49
#25934
30K
18.64 mi14:38:483:19:5710:4434:41
11:10
#25634
20M
20.00 mi14:53:483:34:5710:4515:00
11:02
#25499
21M
21.00 mi15:05:153:46:2410:4711:27
11:27
#25366
35K
21.75 mi15:13:453:54:5410:488:30
11:22
#25336
23M
23.00 mi15:27:174:08:2610:4813:32
10:49
#25223
24M
24.00 mi15:37:564:19:0510:4810:39
10:39
#25159
40K
24.85 mi15:47:064:28:1510:489:10
10:43
#25096
25.2M
25.20 mi15:51:054:32:1410:483:59
11:33
#25056
Finish
26.22 mi16:00:474:41:5610:469:42
9:31
#24987
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi27477116291162925725(Top 91%)10632(Top 87%)10632(Top 194%)
10K6.21 mi3.10 mi27000+47711344+28511344+28526506(Top 93%)11074(Top 91%)11074(Top 202%)
15K9.32 mi3.11 mi26549+45111084+26011084+26025725(Top 91%)10632(Top 87%)10632(Top 194%)
20K12.43 mi3.11 mi26167+38210870+21410870+21425122(Top 88%)10329(Top 84%)10329(Top 189%)
Half13.11 mi0.68 mi26147+2010864+610864+625956(Top 91%)10792(Top 88%)10792(Top 197%)
25K15.53 mi2.42 mi25934+21310758+10610758+10624939(Top 88%)10254(Top 84%)10254(Top 187%)
30K18.64 mi3.11 mi25634+30010635+12310635+12324309(Top 86%)10032(Top 82%)10032(Top 183%)
20M20.00 mi1.36 mi25499+13510573+6210573+6223655(Top 83%)9771(Top 80%)9771(Top 179%)
21M21.00 mi1.00 mi25366+13310515+5810515+5822504(Top 79%)9248(Top 76%)9248(Top 169%)
35K21.75 mi0.75 mi25336+3010507+810507+824847(Top 87%)10506(Top 86%)10506(Top 192%)
23M23.00 mi1.25 mi25223+11310450+5710450+5722753(Top 80%)9475(Top 77%)9475(Top 173%)
24M24.00 mi1.00 mi25159+6410425+2510425+2523172(Top 82%)9726(Top 80%)9726(Top 178%)
40K24.85 mi0.85 mi25096+6310398+2710398+2722478(Top 79%)9455(Top 77%)9455(Top 173%)
25.2M25.20 mi0.35 mi25056+4010382+1610382+1622120(Top 78%)9230(Top 75%)9230(Top 169%)
Finish26.22 mi1.02 mi24987+6910350+3210350+3221221(Top 75%)8777(Top 72%)8777(Top 160%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 91%
×21stories
+97ft-345ft

Overall

25725

Females

10632

F18-39

10632

5K→10K

3.1 - 6.2 mi

Top 93%
×5stories
+79ft-138ft

Overall

26506

Females

11074

F18-39

11074

10K→15K

6.2 - 9.3 mi

Top 91%
×3stories
+67ft-78ft

Overall

25725

Females

10632

F18-39

10632

15K→20K

9.3 - 12.4 mi

Top 88%
×5stories
+106ft-86ft

Overall

25122

Females

10329

F18-39

10329

20K→Half

12.4 - 13.1 mi

Top 91%
×2stories
+19ft-37ft

Overall

25956

Females

10792

F18-39

10792

Half→25K

13.1 - 15.5 mi

Top 88%
×4stories
+66ft-88ft

Overall

24939

Females

10254

F18-39

10254

25K→30K

15.5 - 18.6 mi

Top 86%
×9stories
+181ft-148ft

Overall

24309

Females

10032

F18-39

10032

30K→20M

18.6 - 20.0 mi

Top 83%
×5stories
+64ft-50ft

Overall

23655

Females

9771

F18-39

9771

20M→21M

20.0 - 21.0 mi

Top 79%
×8stories
+106ft-24ft

Overall

22504

Females

9248

F18-39

9248

21M→35K

21.0 - 21.8 mi

Top 87%
×7stories
+17ft-86ft

Overall

24847

Females

10506

F18-39

10506

35K→23M

21.8 - 23.0 mi

Top 80%
×5stories
+23ft-63ft

Overall

22753

Females

9475

F18-39

9475

23M→24M

23.0 - 24.0 mi

Top 82%
×6stories
+12ft-82ft

Overall

23172

Females

9726

F18-39

9726

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

22478

Females

9455

F18-39

9455

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

22120

Females

9230

F18-39

9230

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2stories
+22ft-21ft

Overall

21221

Females

8777

F18-39

8777

Passing Analysis

Category:
Athletes Passed
2593
Passed By
103
Net Change
+2490
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27477
5K → 10K49215+477#27477#27000
10K → 15K4510+451#27000#26549
15K → 20K3820+382#26549#26167
20K → Half3717+20#26167#26147
Half → 25K22714+213#26147#25934
25K → 30K31010+300#25934#25634
30K → 20M1383+135#25634#25499
20M → 21M1396+133#25499#25366
21M → 35K4616+30#25366#25336
35K → 23M1163+113#25336#25223
23M → 24M717+64#25223#25159
24M → 40K707+63#25159#25096
40K → 25.2M411+40#25096#25056
25.2M → Finish734+69#25056#24987
TOTALS2593103+2490
📊

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