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BOSTON MARATHON 2025

Kathy Bell

Bib: 20497•F

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:01/mi
28:01
↑ 97↓ 3451.5%
10K· 6.21 mi
9:03/mi
56:07
↑ 79↓ 1380.4%
15K· 9.32 mi
9:05/mi
1:24:21
↑ 67↓ 78
20K· 12.43 mi
9:07/mi
1:52:40
↑ 106↓ 860.1%
Half· 13.11 mi
8:58/mi
1:58:47
↑ 19↓ 370.5%
25K· 15.53 mi
9:16/mi
2:21:14
↑ 66↓ 880.2%
30K· 18.64 mi
9:30/mi
2:50:44
↑ 181↓ 1480.2%
20M
9:27/mi
3:03:35
↑ 64↓ 500.2%
21M
9:46/mi
3:13:21
↑ 106↓ 241.6%
35K· 21.75 mi
9:00/mi
3:20:05
↑ 17↓ 861.7%
23M
9:03/mi
3:31:25
↑ 23↓ 630.6%
24M
8:38/mi
3:40:03
↓ 821.3%
40K· 24.85 mi
8:33/mi
3:47:22
↓ 200.3%
25.2M
9:23/mi
3:50:36
↑ 13↓ 160.2%
Finish· 26.22 mi
8:10/mi
3:58:55
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:47
Pace9:04 /mi
2nd Half
Distance13.11 mi
Time2:00:08
Pace9:10 /mi
📊Positive Split: 1.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:3528:019:0128:01
9:01
-
10K
6.21 mi11:49:4156:079:0228:06
9:03
+0:02
15K
9.32 mi12:17:551:24:219:0328:14
9:05
+0:02
20K
12.43 mi12:46:141:52:409:0428:19
9:07
+0:02
Half
13.11 mi12:52:211:58:479:046:07
8:58
-0:09
25K
15.53 mi13:14:482:21:149:0622:27
9:16
+0:18
30K
18.64 mi13:44:182:50:449:1029:30
9:30
+0:14
20M
20.00 mi13:57:093:03:359:1112:51
9:27
-0:03
21M
21.00 mi14:06:553:13:219:129:46
9:46
+0:19
35K
21.75 mi14:13:393:20:059:126:44
9:00
-0:46
23M
23.00 mi14:24:593:31:259:1211:20
9:03
+0:03
24M
24.00 mi14:33:373:40:039:108:38
8:38
-0:25
40K
24.85 mi14:40:563:47:229:097:19
8:33
-0:05
25.2M
25.20 mi14:44:103:50:369:093:14
9:23
+0:50
Finish
26.22 mi14:52:293:58:559:078:19
8:10
-1:13

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

8:10 /mi

Average Pace

9:07 /mi

Slowest Pace

9:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

30:23

13% of race

Time at Steady Pace

3:18:46

83% of race

Time at Slower Pace

9:46

4% of race

Average Pace: 9:07 /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 mi11:21:3528:019:0128:01
9:01
#22490
10K
6.21 mi11:49:4156:079:0228:06
9:03
#22548
15K
9.32 mi12:17:551:24:219:0328:14
9:05
#22499
20K
12.43 mi12:46:141:52:409:0428:19
9:07
#22228
Half
13.11 mi12:52:211:58:479:046:07
8:58
#22182
25K
15.53 mi13:14:482:21:149:0622:27
9:16
#21973
30K
18.64 mi13:44:182:50:449:1029:30
9:30
#21584
20M
20.00 mi13:57:093:03:359:1112:51
9:27
#21362
21M
21.00 mi14:06:553:13:219:129:46
9:46
#21152
35K
21.75 mi14:13:393:20:059:126:44
9:00
#21026
23M
23.00 mi14:24:593:31:259:1211:20
9:03
#20792
24M
24.00 mi14:33:373:40:039:108:38
8:38
#20589
40K
24.85 mi14:40:563:47:229:097:19
8:33
#20396
25.2M
25.20 mi14:44:103:50:369:093:14
9:23
#20323
Finish
26.22 mi14:52:293:58:559:078:19
8:10
#20142
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi224908898889822413(Top 79%)8781(Top 72%)8781(Top 674%)
10K6.21 mi3.10 mi22548-588914-168914-1622583(Top 80%)8911(Top 73%)8911(Top 684%)
15K9.32 mi3.11 mi22499+498857+578857+5722413(Top 79%)8781(Top 72%)8781(Top 674%)
20K12.43 mi3.11 mi22228+2718716+1418716+14121515(Top 76%)8322(Top 68%)8322(Top 639%)
Half13.11 mi0.68 mi22182+468696+208696+2021691(Top 76%)8410(Top 69%)8410(Top 645%)
25K15.53 mi2.42 mi21973+2098587+1098587+10921020(Top 74%)8108(Top 66%)8108(Top 622%)
30K18.64 mi3.11 mi21584+3898394+1938394+19319930(Top 70%)7624(Top 62%)7624(Top 585%)
20M20.00 mi1.36 mi21362+2228301+938301+9319000(Top 67%)7259(Top 59%)7259(Top 557%)
21M21.00 mi1.00 mi21152+2108202+998202+9917363(Top 61%)6465(Top 53%)6465(Top 496%)
35K21.75 mi0.75 mi21026+1268148+548148+5418276(Top 64%)7068(Top 58%)7068(Top 542%)
23M23.00 mi1.25 mi20792+2348048+1008048+10016590(Top 58%)6231(Top 51%)6231(Top 478%)
24M24.00 mi1.00 mi20589+2037957+917957+9115399(Top 54%)5610(Top 46%)5610(Top 431%)
40K24.85 mi0.85 mi20396+1937866+917866+9113863(Top 49%)4911(Top 40%)4911(Top 377%)
25.2M25.20 mi0.35 mi20323+737838+287838+2814022(Top 49%)5065(Top 41%)5065(Top 389%)
Finish26.22 mi1.02 mi20142+1817753+857753+8514068(Top 50%)4999(Top 41%)4999(Top 384%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21story building
+97ft-345ft

Overall

22413

Females

8781

F50-54

8781

5K→10K

3.1 - 6.2 mi

Top 80%
×5story building
+79ft-138ft

Overall

22583

Females

8911

F50-54

8911

10K→15K

6.2 - 9.3 mi

Top 79%
×3story building
+67ft-78ft

Overall

22413

Females

8781

F50-54

8781

15K→20K

9.3 - 12.4 mi

Top 76%
×5story building
+106ft-86ft

Overall

21515

Females

8322

F50-54

8322

20K→Half

12.4 - 13.1 mi

Top 76%
×2story building
+19ft-37ft

Overall

21691

Females

8410

F50-54

8410

Half→25K

13.1 - 15.5 mi

Top 74%
×4story building
+66ft-88ft

Overall

21020

Females

8108

F50-54

8108

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

19930

Females

7624

F50-54

7624

30K→20M

18.6 - 20.0 mi

Top 67%
×5story building
+64ft-50ft

Overall

19000

Females

7259

F50-54

7259

20M→21M

20.0 - 21.0 mi

Top 61%
×8story building
+106ft-24ft

Overall

17363

Females

6465

F50-54

6465

21M→35K

21.0 - 21.8 mi

Top 64%
×7story building
+17ft-86ft

Overall

18276

Females

7068

F50-54

7068

35K→23M

21.8 - 23.0 mi

Top 58%
×5story building
+23ft-63ft

Overall

16590

Females

6231

F50-54

6231

23M→24M

23.0 - 24.0 mi

Top 54%
×6story building
+12ft-82ft

Overall

15399

Females

5610

F50-54

5610

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

13863

Females

4911

F50-54

4911

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

14022

Females

5065

F50-54

5065

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2story building
+22ft-21ft

Overall

14068

Females

4999

F50-54

4999

Passing Analysis

Category:
Athletes Passed
2975
Passed By
627
Net Change
+2348
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22490
5K → 10K220278-58#22490#22548
10K → 15K204155+49#22548#22499
15K → 20K32150+271#22499#22228
20K → Half6014+46#22228#22182
Half → 25K25647+209#22182#21973
25K → 30K42940+389#21973#21584
30K → 20M2297+222#21584#21362
20M → 21M2199+210#21362#21152
21M → 35K13711+126#21152#21026
35K → 23M2373+234#21026#20792
23M → 24M2041+203#20792#20589
24M → 40K1952+193#20589#20396
40K → 25.2M763+73#20396#20323
25.2M → Finish1887+181#20323#20142
TOTALS2975627+2348
📊

Passing Visuals

Category:
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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