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BOSTON MARATHON 2025

Joellyn Fox

Bib: 28055•F

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F40-44)
#0 / 1718
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:17
Rank: #23999
Start → 5K
29:17 | 9:26/mi
10K· 6.21 mi
59:37
Rank: #24442 (-443)
5K → 10K
30:20 | 9:46/mi
15K· 9.32 mi
1:29:54
Rank: #24424 (+18)
10K → 15K
30:17 | 9:45/mi
20K· 12.43 mi
2:00:49
Rank: #24353 (+71)
15K → 20K
30:55 | 9:57/mi
Half· 13.11 mi
2:07:24
Rank: #24327 (+26)
20K → Half
6:35 | 9:39/mi
25K· 15.53 mi
2:31:46
Rank: #24156 (+171)
Half → 25K
24:22 | 10:03/mi
30K· 18.64 mi
3:04:02
Rank: #23879 (+277)
25K → 30K
32:16 | 10:23/mi
20M
3:17:59
Rank: #23728 (+151)
30K → 20M
13:57 | 10:16/mi
21M
3:28:38
Rank: #23540 (+188)
20M → 21M
10:39 | 10:39/mi
35K· 21.75 mi
3:36:05
Rank: #23444 (+96)
21M → 35K
7:27 | 9:57/mi
23M
3:49:02
Rank: #23355 (+89)
35K → 23M
12:57 | 10:21/mi
24M
3:58:54
Rank: #23242 (+113)
23M → 24M
9:52 | 9:52/mi
40K· 24.85 mi
4:07:31
Rank: #23145 (+97)
24M → 40K
8:37 | 10:05/mi
25.2M
4:11:16
Rank: #23109 (+36)
40K → 25.2M
3:45 | 10:52/mi
Finish· 26.22 mi
4:20:41
Rank: #23032 (+77)
25.2M → Finish
9:25 | 9:14/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:07:24
Pace9:43 /mi
2nd Half
Distance13.11 mi
Time2:13:17
Pace10:10 /mi
📊Positive Split: 4.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:1429:179:2629:17
9:26
-
10K
6.21 mi12:16:3459:379:3630:20
9:46
+0:20
15K
9.32 mi12:46:511:29:549:3930:17
9:45
-0:01
20K
12.43 mi13:17:462:00:499:4330:55
9:57
+0:12
Half
13.11 mi13:24:212:07:249:436:35
9:39
-0:18
25K
15.53 mi13:48:432:31:469:4624:22
10:03
+0:24
30K
18.64 mi14:20:593:04:029:5232:16
10:23
+0:20
20M
20.00 mi14:34:563:17:599:5413:57
10:16
-0:07
21M
21.00 mi14:45:353:28:389:5610:39
10:39
+0:23
35K
21.75 mi14:53:023:36:059:567:27
9:57
-0:42
23M
23.00 mi15:05:593:49:029:5712:57
10:21
+0:24
24M
24.00 mi15:15:513:58:549:579:52
9:52
-0:29
40K
24.85 mi15:24:284:07:319:588:37
10:05
+0:13
25.2M
25.20 mi15:28:134:11:169:583:45
10:52
+0:47
Finish
26.22 mi15:37:384:20:419:579:25
9:14
-1:38

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

9:14 /mi

Average Pace

9:57 /mi

Slowest Pace

10:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:07:07

72% of race

Time at Steady Pace

1:13:34

28% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:57 /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 mi11:46:1429:179:2629:17
9:26
#23999
10K
6.21 mi12:16:3459:379:3630:20
9:46
#24442
15K
9.32 mi12:46:511:29:549:3930:17
9:45
#24424
20K
12.43 mi13:17:462:00:499:4330:55
9:57
#24353
Half
13.11 mi13:24:212:07:249:436:35
9:39
#24327
25K
15.53 mi13:48:432:31:469:4624:22
10:03
#24156
30K
18.64 mi14:20:593:04:029:5232:16
10:23
#23879
20M
20.00 mi14:34:563:17:599:5413:57
10:16
#23728
21M
21.00 mi14:45:353:28:389:5610:39
10:39
#23540
35K
21.75 mi14:53:023:36:059:567:27
9:57
#23444
23M
23.00 mi15:05:593:49:029:5712:57
10:21
#23355
24M
24.00 mi15:15:513:58:549:579:52
9:52
#23242
40K
24.85 mi15:24:284:07:319:588:37
10:05
#23145
25.2M
25.20 mi15:28:134:11:169:583:45
10:52
#23109
Finish
26.22 mi15:37:384:20:419:579:25
9:14
#23032
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi239999696969624422(Top 86%)9906(Top 81%)9906(Top 577%)
10K6.21 mi3.10 mi24442-4439919-2239919-22324762(Top 87%)10099(Top 83%)10099(Top 588%)
15K9.32 mi3.11 mi24424+189917+29917+224422(Top 86%)9906(Top 81%)9906(Top 577%)
20K12.43 mi3.11 mi24353+719895+229895+2224128(Top 85%)9782(Top 80%)9782(Top 569%)
Half13.11 mi0.68 mi24327+269887+89887+823981(Top 84%)9692(Top 79%)9692(Top 564%)
25K15.53 mi2.42 mi24156+1719795+929795+9223385(Top 82%)9414(Top 77%)9414(Top 548%)
30K18.64 mi3.11 mi23879+2779667+1289667+12822677(Top 80%)9146(Top 75%)9146(Top 532%)
20M20.00 mi1.36 mi23728+1519612+559612+5521777(Top 77%)8781(Top 72%)8781(Top 511%)
21M21.00 mi1.00 mi23540+1889521+919521+9120475(Top 72%)8175(Top 67%)8175(Top 476%)
35K21.75 mi0.75 mi23444+969482+399482+3921810(Top 77%)8944(Top 73%)8944(Top 521%)
23M23.00 mi1.25 mi23355+899449+339449+3321568(Top 76%)8858(Top 72%)8858(Top 516%)
24M24.00 mi1.00 mi23242+1139417+329417+3220975(Top 74%)8593(Top 70%)8593(Top 500%)
40K24.85 mi0.85 mi23145+979383+349383+3420743(Top 73%)8539(Top 70%)8539(Top 497%)
25.2M25.20 mi0.35 mi23109+369371+129371+1220309(Top 72%)8329(Top 68%)8329(Top 485%)
Finish26.22 mi1.02 mi23032+779335+369335+3620167(Top 71%)8245(Top 67%)8245(Top 480%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21stories
+97ft-345ft

Overall

24422

Females

9906

F40-44

9906

5K→10K

3.1 - 6.2 mi

Top 87%
×5stories
+79ft-138ft

Overall

24762

Females

10099

F40-44

10099

10K→15K

6.2 - 9.3 mi

Top 86%
×3stories
+67ft-78ft

Overall

24422

Females

9906

F40-44

9906

15K→20K

9.3 - 12.4 mi

Top 85%
×5stories
+106ft-86ft

Overall

24128

Females

9782

F40-44

9782

20K→Half

12.4 - 13.1 mi

Top 84%
×2stories
+19ft-37ft

Overall

23981

Females

9692

F40-44

9692

Half→25K

13.1 - 15.5 mi

Top 82%
×4stories
+66ft-88ft

Overall

23385

Females

9414

F40-44

9414

25K→30K

15.5 - 18.6 mi

Top 80%
×9stories
+181ft-148ft

Overall

22677

Females

9146

F40-44

9146

30K→20M

18.6 - 20.0 mi

Top 77%
×5stories
+64ft-50ft

Overall

21777

Females

8781

F40-44

8781

20M→21M

20.0 - 21.0 mi

Top 72%
×8stories
+106ft-24ft

Overall

20475

Females

8175

F40-44

8175

21M→35K

21.0 - 21.8 mi

Top 77%
×7stories
+17ft-86ft

Overall

21810

Females

8944

F40-44

8944

35K→23M

21.8 - 23.0 mi

Top 76%
×5stories
+23ft-63ft

Overall

21568

Females

8858

F40-44

8858

23M→24M

23.0 - 24.0 mi

Top 74%
×6stories
+12ft-82ft

Overall

20975

Females

8593

F40-44

8593

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

20743

Females

8539

F40-44

8539

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

20309

Females

8329

F40-44

8329

25.2M→Finish

25.2 - 26.2 mi

Top 71%
×2stories
+22ft-21ft

Overall

20167

Females

8245

F40-44

8245

Passing Analysis

Category:
Athletes Passed
1875
Passed By
908
Net Change
+967
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23999
5K → 10K93536-443#23999#24442
10K → 15K150132+18#24442#24424
15K → 20K16695+71#24424#24353
20K → Half3610+26#24353#24327
Half → 25K19827+171#24327#24156
25K → 30K31942+277#24156#23879
30K → 20M16817+151#23879#23728
20M → 21M1935+188#23728#23540
21M → 35K10610+96#23540#23444
35K → 23M10415+89#23444#23355
23M → 24M1207+113#23355#23242
24M → 40K1036+97#23242#23145
40K → 25.2M371+36#23145#23109
25.2M → Finish825+77#23109#23032
TOTALS1875908+967
📊

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