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BOSTON MARATHON 2025

Sydney Stribrny

Bib: 4747•F

WA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 9%
Gender (Female)
#0 / 12228
Top 1.0%
Division (F18-39)
#0 / 5469
Top 2%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:47
Rank: #2893
Start → 5K
19:47 | 6:22/mi
10K· 6.21 mi
39:43
Rank: #3014 (-121)
5K → 10K
19:56 | 6:25/mi
15K· 9.32 mi
59:28
Rank: #2871 (+143)
10K → 15K
19:45 | 6:21/mi
20K· 12.43 mi
1:19:20
Rank: #2764 (+107)
15K → 20K
19:52 | 6:24/mi
Half· 13.11 mi
1:23:39
Rank: #2750 (+14)
20K → Half
4:19 | 6:20/mi
25K· 15.53 mi
1:39:39
Rank: #2831 (-81)
Half → 25K
16:00 | 6:36/mi
30K· 18.64 mi
2:00:08
Rank: #2699 (+132)
25K → 30K
20:29 | 6:36/mi
20M
2:09:21
Rank: #2674 (+25)
30K → 20M
9:13 | 6:47/mi
21M
2:16:30
Rank: #2672 (+2)
20M → 21M
7:09 | 7:09/mi
35K· 21.75 mi
2:21:25
Rank: #2667 (+5)
21M → 35K
4:55 | 6:34/mi
23M
2:29:51
Rank: #2603 (+64)
35K → 23M
8:26 | 6:44/mi
24M
2:36:24
Rank: #2557 (+46)
23M → 24M
6:33 | 6:33/mi
40K· 24.85 mi
2:42:02
Rank: #2500 (+57)
24M → 40K
5:38 | 6:35/mi
25.2M
2:44:28
Rank: #2482 (+18)
40K → 25.2M
2:26 | 7:03/mi
Finish· 26.22 mi
2:51:00
Rank: #2443 (+39)
25.2M → Finish
6:32 | 6:25/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:39
Pace6:23 /mi
2nd Half
Distance13.11 mi
Time1:27:21
Pace6:40 /mi
📊Positive Split: 4.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:5619:476:2219:47
6:22
-
10K
6.21 mi10:43:5239:436:2419:56
6:25
+0:03
15K
9.32 mi11:03:3759:286:2319:45
6:21
-0:04
20K
12.43 mi11:23:291:19:206:2319:52
6:24
+0:03
Half
13.11 mi11:27:481:23:396:234:19
6:20
-0:04
25K
15.53 mi11:43:481:39:396:2516:00
6:36
+0:16
30K
18.64 mi12:04:172:00:086:2720:29
6:36
0:00
20M
20.00 mi12:13:302:09:216:289:13
6:47
+0:11
21M
21.00 mi12:20:392:16:306:307:09
7:09
+0:22
35K
21.75 mi12:25:342:21:256:304:55
6:34
-0:35
23M
23.00 mi12:34:002:29:516:318:26
6:44
+0:10
24M
24.00 mi12:40:332:36:246:316:33
6:33
-0:11
40K
24.85 mi12:46:112:42:026:315:38
6:35
+0:02
25.2M
25.20 mi12:48:372:44:286:322:26
7:03
+0:28
Finish
26.22 mi12:55:092:51:006:326:32
6:25
-0:38

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

6:20 /mi

Average Pace

6:32 /mi

Slowest Pace

7:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:41:25

94% of race

Time at Steady Pace

9:35

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:31 /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 mi10:23:5619:476:2219:47
6:22
#2893
10K
6.21 mi10:43:5239:436:2419:56
6:25
#3014
15K
9.32 mi11:03:3759:286:2319:45
6:21
#2871
20K
12.43 mi11:23:291:19:206:2319:52
6:24
#2764
Half
13.11 mi11:27:481:23:396:234:19
6:20
#2750
25K
15.53 mi11:43:481:39:396:2516:00
6:36
#2831
30K
18.64 mi12:04:172:00:086:2720:29
6:36
#2699
20M
20.00 mi12:13:302:09:216:289:13
6:47
#2674
21M
21.00 mi12:20:392:16:306:307:09
7:09
#2672
35K
21.75 mi12:25:342:21:256:304:55
6:34
#2667
23M
23.00 mi12:34:002:29:516:318:26
6:44
#2603
24M
24.00 mi12:40:332:36:246:316:33
6:33
#2557
40K
24.85 mi12:46:112:42:026:315:38
6:35
#2500
25.2M
25.20 mi12:48:372:44:286:322:26
7:03
#2482
Finish
26.22 mi12:55:092:51:006:326:32
6:25
#2443
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi28931331332687(Top 9%)121(Top 1.0%)121(Top 2%)
10K6.21 mi3.10 mi3014-121140-7140-73164(Top 11%)146(Top 1%)146(Top 3%)
15K9.32 mi3.11 mi2871+143129+11129+112687(Top 9%)121(Top 1.0%)121(Top 2%)
20K12.43 mi3.11 mi2764+107122+7122+72506(Top 9%)110(Top 0.9%)110(Top 2%)
Half13.11 mi0.68 mi2750+14120+2120+22727(Top 10%)116(Top 0.9%)116(Top 2%)
25K15.53 mi2.42 mi2831-81123-3123-33432(Top 12%)186(Top 2%)186(Top 3%)
30K18.64 mi3.11 mi2699+132116+7116+72395(Top 8%)121(Top 1.0%)121(Top 2%)
20M20.00 mi1.36 mi2674+25119-3119-32859(Top 10%)175(Top 1%)175(Top 3%)
21M21.00 mi1.00 mi2672+2121-2121-22938(Top 10%)205(Top 2%)205(Top 4%)
35K21.75 mi0.75 mi2667+5122-1122-12865(Top 10%)210(Top 2%)210(Top 4%)
23M23.00 mi1.25 mi2603+64120+2120+22432(Top 9%)168(Top 1%)168(Top 3%)
24M24.00 mi1.00 mi2557+46124-4124-42291(Top 8%)163(Top 1%)163(Top 3%)
40K24.85 mi0.85 mi2500+57122+2122+21959(Top 7%)143(Top 1%)143(Top 3%)
25.2M25.20 mi0.35 mi2482+181221221724(Top 6%)143(Top 1%)143(Top 3%)
Finish26.22 mi1.02 mi2443+39121+1121+12395(Top 8%)201(Top 2%)201(Top 4%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21stories
+97ft-345ft

Overall

2687

Females

121

F18-39

121

5K→10K

3.1 - 6.2 mi

Top 11%
×5stories
+79ft-138ft

Overall

3164

Females

146

F18-39

146

10K→15K

6.2 - 9.3 mi

Top 9%
×3stories
+67ft-78ft

Overall

2687

Females

121

F18-39

121

15K→20K

9.3 - 12.4 mi

Top 9%
×5stories
+106ft-86ft

Overall

2506

Females

110

F18-39

110

20K→Half

12.4 - 13.1 mi

Top 10%
×2stories
+19ft-37ft

Overall

2727

Females

116

F18-39

116

Half→25K

13.1 - 15.5 mi

Top 12%
×4stories
+66ft-88ft

Overall

3432

Females

186

F18-39

186

25K→30K

15.5 - 18.6 mi

Top 8%
×9stories
+181ft-148ft

Overall

2395

Females

121

F18-39

121

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2859

Females

175

F18-39

175

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2938

Females

205

F18-39

205

21M→35K

21.0 - 21.8 mi

Top 10%
×7stories
+17ft-86ft

Overall

2865

Females

210

F18-39

210

35K→23M

21.8 - 23.0 mi

Top 9%
×5stories
+23ft-63ft

Overall

2432

Females

168

F18-39

168

23M→24M

23.0 - 24.0 mi

Top 8%
×6stories
+12ft-82ft

Overall

2291

Females

163

F18-39

163

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

1959

Females

143

F18-39

143

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1724

Females

143

F18-39

143

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2395

Females

201

F18-39

201

Passing Analysis

Category:
Athletes Passed
1080
Passed By
630
Net Change
+450
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2893
5K → 10K91212-121#2893#3014
10K → 15K17431+143#3014#2871
15K → 20K13730+107#2871#2764
20K → Half206+14#2764#2750
Half → 25K44125-81#2750#2831
25K → 30K16735+132#2831#2699
30K → 20M6742+25#2699#2674
20M → 21M5755+2#2674#2672
21M → 35K3227+5#2672#2667
35K → 23M8218+64#2667#2603
23M → 24M6418+46#2603#2557
24M → 40K669+57#2557#2500
40K → 25.2M224+18#2500#2482
25.2M → Finish5718+39#2482#2443
TOTALS1080630+450
📊

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