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BOSTON MARATHON 2025

Cindy Shirley

Bib: 23398•F

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 39%
Masters (Masters Women)
#0 / 6759
Top 24%
Division (F55-59)
#0 / 994
Top 8%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:32
Rank: #15668
Start → 5K
24:32 | 7:54/mi
10K· 6.21 mi
49:06
Rank: #15698 (-30)
5K → 10K
24:34 | 7:54/mi
15K· 9.32 mi
1:13:40
Rank: #15525 (+173)
10K → 15K
24:34 | 7:54/mi
20K· 12.43 mi
1:38:13
Rank: #15126 (+399)
15K → 20K
24:33 | 7:54/mi
Half· 13.11 mi
1:43:32
Rank: #15077 (+49)
20K → Half
5:19 | 7:48/mi
25K· 15.53 mi
2:02:51
Rank: #14798 (+279)
Half → 25K
19:19 | 7:58/mi
30K· 18.64 mi
2:28:43
Rank: #14517 (+281)
25K → 30K
25:52 | 8:20/mi
20M
2:40:03
Rank: #14348 (+169)
30K → 20M
11:20 | 8:20/mi
21M
2:48:55
Rank: #14220 (+128)
20M → 21M
8:52 | 8:52/mi
35K· 21.75 mi
2:55:11
Rank: #14243 (-23)
21M → 35K
6:16 | 8:23/mi
23M
3:06:23
Rank: #14370 (-127)
35K → 23M
11:12 | 8:57/mi
24M
3:14:52
Rank: #14334 (+36)
23M → 24M
8:29 | 8:29/mi
40K· 24.85 mi
3:22:42
Rank: #14422 (-88)
24M → 40K
7:50 | 9:10/mi
25.2M
3:26:20
Rank: #14518 (-96)
40K → 25.2M
3:38 | 10:32/mi
Finish· 26.22 mi
3:35:36
Rank: #14722 (-204)
25.2M → Finish
9:16 | 9:06/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:32
Pace7:54 /mi
2nd Half
Distance13.11 mi
Time1:52:04
Pace8:33 /mi
📊Positive Split: 8.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:5824:327:5424:32
7:54
-
10K
6.21 mi11:45:3249:067:5424:34
7:54
0:00
15K
9.32 mi12:10:061:13:407:5424:34
7:54
0:00
20K
12.43 mi12:34:391:38:137:5424:33
7:54
0:00
Half
13.11 mi12:39:581:43:327:545:19
7:48
-0:06
25K
15.53 mi12:59:172:02:517:5419:19
7:58
+0:10
30K
18.64 mi13:25:092:28:437:5925:52
8:20
+0:22
20M
20.00 mi13:36:292:40:038:0011:20
8:20
0:00
21M
21.00 mi13:45:212:48:558:038:52
8:52
+0:32
35K
21.75 mi13:51:372:55:118:036:16
8:23
-0:29
23M
23.00 mi14:02:493:06:238:0611:12
8:57
+0:34
24M
24.00 mi14:11:183:14:528:078:29
8:29
-0:28
40K
24.85 mi14:19:083:22:428:097:50
9:10
+0:41
25.2M
25.20 mi14:22:463:26:208:113:38
10:32
+1:22
Finish
26.22 mi14:32:023:35:368:149:16
9:06
-1:26

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

7:48 /mi

Average Pace

8:14 /mi

Slowest Pace

10:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:02:51

57% of race

Time at Steady Pace

51:57

24% of race

Time at Slower Pace

40:48

19% of race

Average Pace: 8:13 /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 mi11:20:5824:327:5424:32
7:54
#15668
10K
6.21 mi11:45:3249:067:5424:34
7:54
#15698
15K
9.32 mi12:10:061:13:407:5424:34
7:54
#15525
20K
12.43 mi12:34:391:38:137:5424:33
7:54
#15126
Half
13.11 mi12:39:581:43:327:545:19
7:48
#15077
25K
15.53 mi12:59:172:02:517:5419:19
7:58
#14798
30K
18.64 mi13:25:092:28:437:5925:52
8:20
#14517
20M
20.00 mi13:36:292:40:038:0011:20
8:20
#14348
21M
21.00 mi13:45:212:48:558:038:52
8:52
#14220
35K
21.75 mi13:51:372:55:118:036:16
8:23
#14243
23M
23.00 mi14:02:493:06:238:0611:12
8:57
#14370
24M
24.00 mi14:11:183:14:528:078:29
8:29
#14334
40K
24.85 mi14:19:083:22:428:097:50
9:10
#14422
25.2M
25.20 mi14:22:463:26:208:113:38
10:32
#14518
Finish
26.22 mi14:32:023:35:368:149:16
9:06
#14722
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi156684935493515313(Top 54%)4757(Top 39%)4757(Top 479%)
10K6.21 mi3.10 mi15698-304958-234958-2315722(Top 55%)4961(Top 41%)4961(Top 499%)
15K9.32 mi3.11 mi15525+1734863+954863+9515313(Top 54%)4757(Top 39%)4757(Top 479%)
20K12.43 mi3.11 mi15126+3994650+2134650+21314123(Top 50%)4168(Top 34%)4168(Top 419%)
Half13.11 mi0.68 mi15077+494625+254625+2514289(Top 50%)4240(Top 35%)4240(Top 427%)
25K15.53 mi2.42 mi14798+2794504+1214504+12113651(Top 48%)4037(Top 33%)4037(Top 406%)
30K18.64 mi3.11 mi14517+2814400+1044400+10413671(Top 48%)4184(Top 34%)4184(Top 421%)
20M20.00 mi1.36 mi14348+1694328+724328+7212801(Top 45%)3867(Top 32%)3867(Top 389%)
21M21.00 mi1.00 mi14220+1284280+484280+4812753(Top 45%)4014(Top 33%)4014(Top 404%)
35K21.75 mi0.75 mi14243-234318-384318-3814739(Top 52%)5088(Top 42%)5088(Top 512%)
23M23.00 mi1.25 mi14370-1274419-1014419-10115954(Top 56%)5854(Top 48%)5854(Top 589%)
24M24.00 mi1.00 mi14334+364425-64425-614407(Top 51%)5034(Top 41%)5034(Top 506%)
40K24.85 mi0.85 mi14422-884506-814506-8117178(Top 60%)6673(Top 55%)6673(Top 671%)
25.2M25.20 mi0.35 mi14518-964572-664572-6619142(Top 67%)7697(Top 63%)7697(Top 774%)
Finish26.22 mi1.02 mi14722-2044708-1364708-13619500(Top 69%)7858(Top 64%)7858(Top 791%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21stories
+97ft-345ft

Overall

15313

Females

4757

F55-59

4757

5K→10K

3.1 - 6.2 mi

Top 55%
×5stories
+79ft-138ft

Overall

15722

Females

4961

F55-59

4961

10K→15K

6.2 - 9.3 mi

Top 54%
×3stories
+67ft-78ft

Overall

15313

Females

4757

F55-59

4757

15K→20K

9.3 - 12.4 mi

Top 50%
×5stories
+106ft-86ft

Overall

14123

Females

4168

F55-59

4168

20K→Half

12.4 - 13.1 mi

Top 50%
×2stories
+19ft-37ft

Overall

14289

Females

4240

F55-59

4240

Half→25K

13.1 - 15.5 mi

Top 48%
×4stories
+66ft-88ft

Overall

13651

Females

4037

F55-59

4037

25K→30K

15.5 - 18.6 mi

Top 48%
×9stories
+181ft-148ft

Overall

13671

Females

4184

F55-59

4184

30K→20M

18.6 - 20.0 mi

Top 45%
×5stories
+64ft-50ft

Overall

12801

Females

3867

F55-59

3867

20M→21M

20.0 - 21.0 mi

Top 45%
×8stories
+106ft-24ft

Overall

12753

Females

4014

F55-59

4014

21M→35K

21.0 - 21.8 mi

Top 52%
×7stories
+17ft-86ft

Overall

14739

Females

5088

F55-59

5088

35K→23M

21.8 - 23.0 mi

Top 56%
×5stories
+23ft-63ft

Overall

15954

Females

5854

F55-59

5854

23M→24M

23.0 - 24.0 mi

Top 51%
×6stories
+12ft-82ft

Overall

14407

Females

5034

F55-59

5034

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

17178

Females

6673

F55-59

6673

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

19142

Females

7697

F55-59

7697

25.2M→Finish

25.2 - 26.2 mi

Top 69%
×2stories
+22ft-21ft

Overall

19500

Females

7858

F55-59

7858

Passing Analysis

Category:
Athletes Passed
2514
Passed By
1568
Net Change
+946
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15668
5K → 10K304334-30#15668#15698
10K → 15K292119+173#15698#15525
15K → 20K43940+399#15525#15126
20K → Half6617+49#15126#15077
Half → 25K32445+279#15077#14798
25K → 30K387106+281#14798#14517
30K → 20M20940+169#14517#14348
20M → 21M17648+128#14348#14220
21M → 35K6790-23#14220#14243
35K → 23M73200-127#14243#14370
23M → 24M8953+36#14370#14334
24M → 40K53141-88#14334#14422
40K → 25.2M8104-96#14422#14518
25.2M → Finish27231-204#14518#14722
TOTALS25141568+946
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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