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BOSTON MARATHON 2025

Cynthia Denio

Bib: 16294•F

NH

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 50%
Gender (Female)
#0 / 12228
Top 36%
Masters (Masters Women)
#0 / 6759
Top 21%
Division (F45-49)
#0 / 1813
Top 24%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:19
Rank: #12312
Start → 5K
23:19 | 7:30/mi
10K· 6.21 mi
47:00
Rank: #12703 (-391)
5K → 10K
23:41 | 7:37/mi
15K· 9.32 mi
1:10:41
Rank: #12728 (-25)
10K → 15K
23:41 | 7:37/mi
20K· 12.43 mi
1:35:10
Rank: #12992 (-264)
15K → 20K
24:29 | 7:53/mi
Half· 13.11 mi
1:40:29
Rank: #13060 (-68)
20K → Half
5:19 | 7:48/mi
25K· 15.53 mi
2:00:18
Rank: #13387 (-327)
Half → 25K
19:49 | 8:10/mi
30K· 18.64 mi
2:26:41
Rank: #13633 (-246)
25K → 30K
26:23 | 8:30/mi
20M
2:38:31
Rank: #13725 (-92)
30K → 20M
11:50 | 8:42/mi
21M
2:48:09
Rank: #13909 (-184)
20M → 21M
9:38 | 9:38/mi
35K· 21.75 mi
2:54:28
Rank: #13944 (-35)
21M → 35K
6:19 | 8:27/mi
23M
3:05:31
Rank: #14070 (-126)
35K → 23M
11:03 | 8:50/mi
24M
3:14:08
Rank: #14127 (-57)
23M → 24M
8:37 | 8:37/mi
40K· 24.85 mi
3:21:39
Rank: #14147 (-20)
24M → 40K
7:31 | 8:47/mi
25.2M
3:24:49
Rank: #14109 (+38)
40K → 25.2M
3:10 | 9:11/mi
Finish· 26.22 mi
3:33:07
Rank: #14064 (+45)
25.2M → Finish
8:18 | 8:09/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:29
Pace7:40 /mi
2nd Half
Distance13.11 mi
Time1:52:38
Pace8:36 /mi
📊Positive Split: 12.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:57:0323:197:3023:19
7:30
-
10K
6.21 mi11:20:4447:007:3423:41
7:37
+0:07
15K
9.32 mi11:44:251:10:417:3523:41
7:37
0:00
20K
12.43 mi12:08:541:35:107:3924:29
7:53
+0:16
Half
13.11 mi12:14:131:40:297:405:19
7:48
-0:05
25K
15.53 mi12:34:022:00:187:4519:49
8:10
+0:22
30K
18.64 mi13:00:252:26:417:5226:23
8:30
+0:20
20M
20.00 mi13:12:152:38:317:5611:50
8:42
+0:12
21M
21.00 mi13:21:532:48:098:009:38
9:38
+0:56
35K
21.75 mi13:28:122:54:288:016:19
8:27
-1:11
23M
23.00 mi13:39:153:05:318:0411:03
8:50
+0:23
24M
24.00 mi13:47:523:14:088:058:37
8:37
-0:13
40K
24.85 mi13:55:233:21:398:077:31
8:47
+0:10
25.2M
25.20 mi13:58:333:24:498:083:10
9:11
+0:24
Finish
26.22 mi14:06:513:33:078:088:18
8:09
-1:02

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

7:30 /mi

Average Pace

8:08 /mi

Slowest Pace

9:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:48:47

51% of race

Time at Steady Pace

1:12:58

34% of race

Time at Slower Pace

31:22

15% of race

Average Pace: 8:08 /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 mi10:57:0323:197:3023:19
7:30
#12312
10K
6.21 mi11:20:4447:007:3423:41
7:37
#12703
15K
9.32 mi11:44:251:10:417:3523:41
7:37
#12728
20K
12.43 mi12:08:541:35:107:3924:29
7:53
#12992
Half
13.11 mi12:14:131:40:297:405:19
7:48
#13060
25K
15.53 mi12:34:022:00:187:4519:49
8:10
#13387
30K
18.64 mi13:00:252:26:417:5226:23
8:30
#13633
20M
20.00 mi13:12:152:38:317:5611:50
8:42
#13725
21M
21.00 mi13:21:532:48:098:009:38
9:38
#13909
35K
21.75 mi13:28:122:54:288:016:19
8:27
#13944
23M
23.00 mi13:39:153:05:318:0411:03
8:50
#14070
24M
24.00 mi13:47:523:14:088:058:37
8:37
#14127
40K
24.85 mi13:55:233:21:398:077:31
8:47
#14147
25.2M
25.20 mi13:58:333:24:498:083:10
9:11
#14109
Finish
26.22 mi14:06:513:33:078:088:18
8:09
#14064
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi123122973297312825(Top 45%)3350(Top 27%)3350(Top 185%)
10K6.21 mi3.10 mi12703-3913180-2073180-20713247(Top 47%)3524(Top 29%)3524(Top 194%)
15K9.32 mi3.11 mi12728-253224-443224-4412825(Top 45%)3350(Top 27%)3350(Top 185%)
20K12.43 mi3.11 mi12992-2643443-2193443-21913942(Top 49%)4062(Top 33%)4062(Top 224%)
Half13.11 mi0.68 mi13060-683482-393482-3914267(Top 50%)4218(Top 34%)4218(Top 233%)
25K15.53 mi2.42 mi13387-3273706-2243706-22415126(Top 53%)4798(Top 39%)4798(Top 265%)
30K18.64 mi3.11 mi13633-2463899-1933899-19314695(Top 52%)4734(Top 39%)4734(Top 261%)
20M20.00 mi1.36 mi13725-923980-813980-8115123(Top 53%)5103(Top 42%)5103(Top 281%)
21M21.00 mi1.00 mi13909-1844118-1384118-13816701(Top 59%)6083(Top 50%)6083(Top 336%)
35K21.75 mi0.75 mi13944-354157-394157-3915143(Top 53%)5305(Top 43%)5305(Top 293%)
23M23.00 mi1.25 mi14070-1264262-1054262-10515253(Top 54%)5463(Top 45%)5463(Top 301%)
24M24.00 mi1.00 mi14127-574324-624324-6215263(Top 54%)5513(Top 45%)5513(Top 304%)
40K24.85 mi0.85 mi14147-204360-364360-3615154(Top 53%)5598(Top 46%)5598(Top 309%)
25.2M25.20 mi0.35 mi14109+384352+84352+812880(Top 45%)4438(Top 36%)4438(Top 245%)
Finish26.22 mi1.02 mi14064+454349+34349+313922(Top 49%)4912(Top 40%)4912(Top 271%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21stories
+97ft-345ft

Overall

12825

Females

3350

F45-49

3350

5K→10K

3.1 - 6.2 mi

Top 47%
×5stories
+79ft-138ft

Overall

13247

Females

3524

F45-49

3524

10K→15K

6.2 - 9.3 mi

Top 45%
×3stories
+67ft-78ft

Overall

12825

Females

3350

F45-49

3350

15K→20K

9.3 - 12.4 mi

Top 49%
×5stories
+106ft-86ft

Overall

13942

Females

4062

F45-49

4062

20K→Half

12.4 - 13.1 mi

Top 50%
×2stories
+19ft-37ft

Overall

14267

Females

4218

F45-49

4218

Half→25K

13.1 - 15.5 mi

Top 53%
×4stories
+66ft-88ft

Overall

15126

Females

4798

F45-49

4798

25K→30K

15.5 - 18.6 mi

Top 52%
×9stories
+181ft-148ft

Overall

14695

Females

4734

F45-49

4734

30K→20M

18.6 - 20.0 mi

Top 53%
×5stories
+64ft-50ft

Overall

15123

Females

5103

F45-49

5103

20M→21M

20.0 - 21.0 mi

Top 59%
×8stories
+106ft-24ft

Overall

16701

Females

6083

F45-49

6083

21M→35K

21.0 - 21.8 mi

Top 53%
×7stories
+17ft-86ft

Overall

15143

Females

5305

F45-49

5305

35K→23M

21.8 - 23.0 mi

Top 54%
×5stories
+23ft-63ft

Overall

15253

Females

5463

F45-49

5463

23M→24M

23.0 - 24.0 mi

Top 54%
×6stories
+12ft-82ft

Overall

15263

Females

5513

F45-49

5513

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

15154

Females

5598

F45-49

5598

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

12880

Females

4438

F45-49

4438

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2stories
+22ft-21ft

Overall

13922

Females

4912

F45-49

4912

Passing Analysis

Category:
Athletes Passed
1279
Passed By
3031
Net Change
-1752
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12312
5K → 10K129520-391#12312#12703
10K → 15K176201-25#12703#12728
15K → 20K129393-264#12728#12992
20K → Half1886-68#12992#13060
Half → 25K84411-327#13060#13387
25K → 30K172418-246#13387#13633
30K → 20M99191-92#13633#13725
20M → 21M56240-184#13725#13909
21M → 35K5186-35#13909#13944
35K → 23M77203-126#13944#14070
23M → 24M72129-57#14070#14127
24M → 40K6686-20#14127#14147
40K → 25.2M5416+38#14147#14109
25.2M → Finish9651+45#14109#14064
TOTALS12793031-1752
📊

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