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BOSTON MARATHON 2025

Olivia Sylbert

Bib: 12913•F

PA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 20%
Gender (Female)
#0 / 12228
Top 5%
Division (F18-39)
#0 / 5469
Top 9%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:07
Rank: #8822
Start → 5K
22:07 | 7:07/mi
10K· 6.21 mi
43:49
Rank: #8274 (+548)
5K → 10K
21:42 | 6:59/mi
15K· 9.32 mi
1:05:21
Rank: #7835 (+439)
10K → 15K
21:32 | 6:56/mi
20K· 12.43 mi
1:26:50
Rank: #7415 (+420)
15K → 20K
21:29 | 6:55/mi
Half· 13.11 mi
1:31:29
Rank: #7340 (+75)
20K → Half
4:39 | 6:49/mi
25K· 15.53 mi
1:48:23
Rank: #7116 (+224)
Half → 25K
16:54 | 6:58/mi
30K· 18.64 mi
2:10:46
Rank: #6771 (+345)
25K → 30K
22:23 | 7:12/mi
20M
2:20:26
Rank: #6522 (+249)
30K → 20M
9:40 | 7:07/mi
21M
2:27:59
Rank: #6364 (+158)
20M → 21M
7:33 | 7:33/mi
35K· 21.75 mi
2:33:15
Rank: #6294 (+70)
21M → 35K
5:16 | 7:02/mi
23M
2:42:12
Rank: #6131 (+163)
35K → 23M
8:57 | 7:09/mi
24M
2:49:12
Rank: #6010 (+121)
23M → 24M
7:00 | 7:00/mi
40K· 24.85 mi
2:55:09
Rank: #5874 (+136)
24M → 40K
5:57 | 6:58/mi
25.2M
2:57:47
Rank: #5808 (+66)
40K → 25.2M
2:38 | 7:38/mi
Finish· 26.22 mi
3:04:43
Rank: #5676 (+132)
25.2M → Finish
6:56 | 6:48/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:29
Pace6:59 /mi
2nd Half
Distance13.11 mi
Time1:33:14
Pace7:07 /mi
📊Positive Split: 1.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:1622:077:0722:07
7:07
-
10K
6.21 mi11:12:5843:497:0321:42
6:59
-0:08
15K
9.32 mi11:34:301:05:217:0121:32
6:56
-0:03
20K
12.43 mi11:55:591:26:506:5921:29
6:55
-0:01
Half
13.11 mi12:00:381:31:296:594:39
6:49
-0:06
25K
15.53 mi12:17:321:48:236:5916:54
6:58
+0:09
30K
18.64 mi12:39:552:10:467:0122:23
7:12
+0:14
20M
20.00 mi12:49:352:20:267:019:40
7:07
-0:05
21M
21.00 mi12:57:082:27:597:037:33
7:33
+0:26
35K
21.75 mi13:02:242:33:157:035:16
7:02
-0:31
23M
23.00 mi13:11:212:42:127:038:57
7:09
+0:07
24M
24.00 mi13:18:212:49:127:037:00
7:00
-0:09
40K
24.85 mi13:24:182:55:097:035:57
6:58
-0:02
25.2M
25.20 mi13:26:562:57:477:032:38
7:38
+0:40
Finish
26.22 mi13:33:523:04:437:036:56
6:48
-0:50

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

6:48 /mi

Average Pace

7:03 /mi

Slowest Pace

7:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:54:32

94% of race

Time at Steady Pace

10:11

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:03 /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 mi10:51:1622:077:0722:07
7:07
#8822
10K
6.21 mi11:12:5843:497:0321:42
6:59
#8274
15K
9.32 mi11:34:301:05:217:0121:32
6:56
#7835
20K
12.43 mi11:55:591:26:506:5921:29
6:55
#7415
Half
13.11 mi12:00:381:31:296:594:39
6:49
#7340
25K
15.53 mi12:17:321:48:236:5916:54
6:58
#7116
30K
18.64 mi12:39:552:10:467:0122:23
7:12
#6771
20M
20.00 mi12:49:352:20:267:019:40
7:07
#6522
21M
21.00 mi12:57:082:27:597:037:33
7:33
#6364
35K
21.75 mi13:02:242:33:157:035:16
7:02
#6294
23M
23.00 mi13:11:212:42:127:038:57
7:09
#6131
24M
24.00 mi13:18:212:49:127:037:00
7:00
#6010
40K
24.85 mi13:24:182:55:097:035:57
6:58
#5874
25.2M
25.20 mi13:26:562:57:477:032:38
7:38
#5808
Finish
26.22 mi13:33:523:04:437:036:56
6:48
#5676
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8822129412947174(Top 25%)777(Top 6%)777(Top 14%)
10K6.21 mi3.10 mi8274+5481094+2001094+2007834(Top 28%)950(Top 8%)950(Top 17%)
15K9.32 mi3.11 mi7835+439943+151943+1517174(Top 25%)777(Top 6%)777(Top 14%)
20K12.43 mi3.11 mi7415+420827+116827+1166320(Top 22%)624(Top 5%)624(Top 11%)
Half13.11 mi0.68 mi7340+75807+20807+206352(Top 22%)614(Top 5%)614(Top 11%)
25K15.53 mi2.42 mi7116+224759+48759+486143(Top 22%)626(Top 5%)626(Top 11%)
30K18.64 mi3.11 mi6771+345720+39720+395936(Top 21%)652(Top 5%)652(Top 12%)
20M20.00 mi1.36 mi6522+249684+36684+364772(Top 17%)456(Top 4%)456(Top 8%)
21M21.00 mi1.00 mi6364+158657+27657+274892(Top 17%)583(Top 5%)583(Top 11%)
35K21.75 mi0.75 mi6294+70652+5652+55672(Top 20%)807(Top 7%)807(Top 15%)
23M23.00 mi1.25 mi6131+163638+14638+144617(Top 16%)562(Top 5%)562(Top 10%)
24M24.00 mi1.00 mi6010+121624+14624+144662(Top 16%)623(Top 5%)623(Top 11%)
40K24.85 mi0.85 mi5874+136609+15609+153703(Top 13%)433(Top 4%)433(Top 8%)
25.2M25.20 mi0.35 mi5808+66602+7602+74112(Top 14%)590(Top 5%)590(Top 11%)
Finish26.22 mi1.02 mi5676+132587+15587+154551(Top 16%)706(Top 6%)706(Top 13%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 25%
×21stories
+97ft-345ft

Overall

7174

Females

777

F18-39

777

5K→10K

3.1 - 6.2 mi

Top 28%
×5stories
+79ft-138ft

Overall

7834

Females

950

F18-39

950

10K→15K

6.2 - 9.3 mi

Top 25%
×3stories
+67ft-78ft

Overall

7174

Females

777

F18-39

777

15K→20K

9.3 - 12.4 mi

Top 22%
×5stories
+106ft-86ft

Overall

6320

Females

624

F18-39

624

20K→Half

12.4 - 13.1 mi

Top 22%
×2stories
+19ft-37ft

Overall

6352

Females

614

F18-39

614

Half→25K

13.1 - 15.5 mi

Top 22%
×4stories
+66ft-88ft

Overall

6143

Females

626

F18-39

626

25K→30K

15.5 - 18.6 mi

Top 21%
×9stories
+181ft-148ft

Overall

5936

Females

652

F18-39

652

30K→20M

18.6 - 20.0 mi

Top 17%
×5stories
+64ft-50ft

Overall

4772

Females

456

F18-39

456

20M→21M

20.0 - 21.0 mi

Top 17%
×8stories
+106ft-24ft

Overall

4892

Females

583

F18-39

583

21M→35K

21.0 - 21.8 mi

Top 20%
×7stories
+17ft-86ft

Overall

5672

Females

807

F18-39

807

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

4617

Females

562

F18-39

562

23M→24M

23.0 - 24.0 mi

Top 16%
×6stories
+12ft-82ft

Overall

4662

Females

623

F18-39

623

24M→40K

24.0 - 24.9 mi

Top 13%
×1story
+6ft-20ft

Overall

3703

Females

433

F18-39

433

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

4112

Females

590

F18-39

590

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2stories
+22ft-21ft

Overall

4551

Females

706

F18-39

706

Passing Analysis

Category:
Athletes Passed
3311
Passed By
165
Net Change
+3146
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8822
5K → 10K59143+548#8822#8274
10K → 15K45112+439#8274#7835
15K → 20K4255+420#7835#7415
20K → Half750+75#7415#7340
Half → 25K24319+224#7340#7116
25K → 30K37328+345#7116#6771
30K → 20M2556+249#6771#6522
20M → 21M1635+158#6522#6364
21M → 35K799+70#6364#6294
35K → 23M17714+163#6294#6131
23M → 24M13110+121#6131#6010
24M → 40K1371+136#6010#5874
40K → 25.2M715+66#5874#5808
25.2M → Finish1408+132#5808#5676
TOTALS3311165+3146
📊

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