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BOSTON MARATHON 2025

Catherine Jackson

Bib: 25220•F

WA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F60-64)
#0 / 624
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:11
Rank: #22718
Start → 5K
9:04/mi
28:11 split
10K· 6.21 mi
57:45
Rank: #23531 (-813)
5K → 10K
9:31/mi
29:34 split
15K· 9.32 mi
1:29:15
Rank: #24251 (-720)
10K → 15K
10:08/mi
31:30 split
20K· 12.43 mi
2:06:06
Rank: #25331 (-1080)
15K → 20K
11:52/mi
36:51 split
Half· 13.11 mi
2:12:51
Rank: #25284 (+47)
20K → Half
9:54/mi
6:45 split
25K· 15.53 mi
2:42:19
Rank: #25616 (-332)
Half → 25K
12:09/mi
29:28 split
30K· 18.64 mi
3:21:31
Rank: #25770 (-154)
25K → 30K
12:37/mi
39:12 split
20M
3:37:13
Rank: #25684 (+86)
30K → 20M
11:33/mi
15:42 split
21M
3:52:15
Rank: #25819 (-135)
20M → 21M
15:02/mi
15:02 split
35K· 21.75 mi
3:59:31
Rank: #25703 (+116)
21M → 35K
9:43/mi
7:16 split
23M
4:15:34
Rank: #25764 (-61)
35K → 23M
12:49/mi
16:03 split
24M
4:25:56
Rank: #25672 (+92)
23M → 24M
10:22/mi
10:22 split
40K· 24.85 mi
4:34:48
Rank: #25551 (+121)
24M → 40K
10:22/mi
8:52 split
25.2M
4:38:34
Rank: #25484 (+67)
40K → 25.2M
10:55/mi
3:46 split
Finish· 26.22 mi
4:49:00
Rank: #25432 (+52)
25.2M → Finish
10:14/mi
10:26 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:12:51
Pace10:08 /mi
2nd Half
Distance13.11 mi
Time2:36:09
Pace11:55 /mi
📊Positive Split: 17.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:28:1528:119:0428:11
9:04
-
10K
6.21 mi11:57:4957:459:1829:34
9:31
+0:27
15K
9.32 mi12:29:191:29:159:3531:30
10:08
+0:37
20K
12.43 mi13:06:102:06:0610:0936:51
11:52
+1:44
Half
13.11 mi13:12:552:12:5110:086:45
9:54
-1:58
25K
15.53 mi13:42:232:42:1910:2729:28
12:09
+2:15
30K
18.64 mi14:21:353:21:3110:4939:12
12:37
+0:28
20M
20.00 mi14:37:173:37:1310:5215:42
11:33
-1:04
21M
21.00 mi14:52:193:52:1511:0415:02
15:02
+3:29
35K
21.75 mi14:59:353:59:3111:017:16
9:43
-5:19
23M
23.00 mi15:15:384:15:3411:0716:03
12:49
+3:06
24M
24.00 mi15:26:004:25:5611:0510:22
10:22
-2:27
40K
24.85 mi15:34:524:34:4811:038:52
10:22
0:00
25.2M
25.20 mi15:38:384:38:3411:033:46
10:55
+0:33
Finish
26.22 mi15:49:044:49:0011:0210:26
10:14
-0:41

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

9:04 /mi

Average Pace

11:02 /mi

Slowest Pace

15:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

57:45

20% of race

Time at Steady Pace

1:18:57

27% of race

Time at Slower Pace

2:32:18

53% of race

Average Pace: 11:01 /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 mi11:28:1528:119:0428:11
9:04
#22718
10K
6.21 mi11:57:4957:459:1829:34
9:31
#23531
15K
9.32 mi12:29:191:29:159:3531:30
10:08
#24251
20K
12.43 mi13:06:102:06:0610:0936:51
11:52
#25331
Half
13.11 mi13:12:552:12:5110:086:45
9:54
#25284
25K
15.53 mi13:42:232:42:1910:2729:28
12:09
#25616
30K
18.64 mi14:21:353:21:3110:4939:12
12:37
#25770
20M
20.00 mi14:37:173:37:1310:5215:42
11:33
#25684
21M
21.00 mi14:52:193:52:1511:0415:02
15:02
#25819
35K
21.75 mi14:59:353:59:3111:017:16
9:43
#25703
23M
23.00 mi15:15:384:15:3411:0716:03
12:49
#25764
24M
24.00 mi15:26:004:25:5611:0510:22
10:22
#25672
40K
24.85 mi15:34:524:34:4811:038:52
10:22
#25551
25.2M
25.20 mi15:38:384:38:3411:033:46
10:55
#25484
Finish
26.22 mi15:49:044:49:0011:0210:26
10:14
#25432
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi227189024902425281(Top 89%)10394(Top 85%)10394(Top 1666%)
10K6.21 mi3.10 mi23531-8139441-4179441-41724149(Top 85%)9773(Top 80%)9773(Top 1566%)
15K9.32 mi3.11 mi24251-7209818-3779818-37725281(Top 89%)10394(Top 85%)10394(Top 1666%)
20K12.43 mi3.11 mi25331-108010425-60710425-60726983(Top 95%)11381(Top 93%)11381(Top 1824%)
Half13.11 mi0.68 mi25284+4710400+2510400+2524579(Top 87%)10046(Top 82%)10046(Top 1610%)
25K15.53 mi2.42 mi25616-33210582-18210582-18226584(Top 94%)11182(Top 91%)11182(Top 1792%)
30K18.64 mi3.11 mi25770-15410703-12110703-12126285(Top 93%)11114(Top 91%)11114(Top 1781%)
20M20.00 mi1.36 mi25684+8610673+3010673+3024629(Top 87%)10282(Top 84%)10282(Top 1648%)
21M21.00 mi1.00 mi25819-13510756-8310756-8327170(Top 96%)11655(Top 95%)11655(Top 1868%)
35K21.75 mi0.75 mi25703+11610699+5710699+5721020(Top 74%)8524(Top 70%)8524(Top 1366%)
23M23.00 mi1.25 mi25764-6110744-4510744-4526169(Top 92%)11180(Top 91%)11180(Top 1792%)
24M24.00 mi1.00 mi25672+9210712+3210712+3222425(Top 79%)9361(Top 77%)9361(Top 1500%)
40K24.85 mi0.85 mi25551+12110658+5410658+5421558(Top 76%)8968(Top 73%)8968(Top 1437%)
25.2M25.20 mi0.35 mi25484+6710622+3610622+3620324(Top 72%)8344(Top 68%)8344(Top 1337%)
Finish26.22 mi1.02 mi25432+5210596+2610596+2623607(Top 83%)9981(Top 82%)9981(Top 1600%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21stories
+97ft-345ft

Overall

25281

Females

10394

F60-64

10394

5K→10K

3.1 - 6.2 mi

Top 85%
×5stories
+79ft-138ft

Overall

24149

Females

9773

F60-64

9773

10K→15K

6.2 - 9.3 mi

Top 89%
×3stories
+67ft-78ft

Overall

25281

Females

10394

F60-64

10394

15K→20K

9.3 - 12.4 mi

Top 95%
×5stories
+106ft-86ft

Overall

26983

Females

11381

F60-64

11381

20K→Half

12.4 - 13.1 mi

Top 87%
×2stories
+19ft-37ft

Overall

24579

Females

10046

F60-64

10046

Half→25K

13.1 - 15.5 mi

Top 94%
×4stories
+66ft-88ft

Overall

26584

Females

11182

F60-64

11182

25K→30K

15.5 - 18.6 mi

Top 93%
×9stories
+181ft-148ft

Overall

26285

Females

11114

F60-64

11114

30K→20M

18.6 - 20.0 mi

Top 87%
×5stories
+64ft-50ft

Overall

24629

Females

10282

F60-64

10282

20M→21M

20.0 - 21.0 mi

Top 96%
×8stories
+106ft-24ft

Overall

27170

Females

11655

F60-64

11655

21M→35K

21.0 - 21.8 mi

Top 74%
×7stories
+17ft-86ft

Overall

21020

Females

8524

F60-64

8524

35K→23M

21.8 - 23.0 mi

Top 92%
×5stories
+23ft-63ft

Overall

26169

Females

11180

F60-64

11180

23M→24M

23.0 - 24.0 mi

Top 79%
×6stories
+12ft-82ft

Overall

22425

Females

9361

F60-64

9361

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

21558

Females

8968

F60-64

8968

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

20324

Females

8344

F60-64

8344

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2stories
+22ft-21ft

Overall

23607

Females

9981

F60-64

9981

Passing Analysis

Category:
Athletes Passed
825
Passed By
3539
Net Change
-2714
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22718
5K → 10K46859-813#22718#23531
10K → 15K32752-720#23531#24251
15K → 20K41084-1080#24251#25331
20K → Half514+47#25331#25284
Half → 25K26358-332#25284#25616
25K → 30K68222-154#25616#25770
30K → 20M9610+86#25770#25684
20M → 21M14149-135#25684#25819
21M → 35K1182+116#25819#25703
35K → 23M2384-61#25703#25764
23M → 24M942+92#25764#25672
24M → 40K1210+121#25672#25551
40K → 25.2M681+67#25551#25484
25.2M → Finish6412+52#25484#25432
TOTALS8253539-2714
📊

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