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BOSTON MARATHON 2025

Carolyn Dienhart

Bib: 19455•F

MN

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 40%
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:11
Rank: #17366
Start → 5K
8:06/mi
25:11 split
10K· 6.21 mi
50:05
Rank: #16967 (+399)
5K → 10K
8:01/mi
24:54 split
15K· 9.32 mi
1:14:50
Rank: #16538 (+429)
10K → 15K
7:58/mi
24:45 split
20K· 12.43 mi
1:40:29
Rank: #16566 (-28)
15K → 20K
8:15/mi
25:39 split
Half· 13.11 mi
1:45:50
Rank: #16470 (+96)
20K → Half
7:50/mi
5:21 split
25K· 15.53 mi
2:05:54
Rank: #16351 (+119)
Half → 25K
8:17/mi
20:04 split
30K· 18.64 mi
2:32:30
Rank: #16091 (+260)
25K → 30K
8:34/mi
26:36 split
20M
2:43:46
Rank: #15766 (+325)
30K → 20M
8:17/mi
11:16 split
21M
2:52:33
Rank: #15508 (+258)
20M → 21M
8:47/mi
8:47 split
35K· 21.75 mi
2:58:39
Rank: #15413 (+95)
21M → 35K
8:09/mi
6:06 split
23M
3:09:04
Rank: #15178 (+235)
35K → 23M
8:19/mi
10:25 split
24M
3:17:20
Rank: #15042 (+136)
23M → 24M
8:16/mi
8:16 split
40K· 24.85 mi
3:24:43
Rank: #15007 (+35)
24M → 40K
8:38/mi
7:23 split
25.2M
3:28:02
Rank: #14986 (+21)
40K → 25.2M
9:37/mi
3:19 split
Finish· 26.22 mi
3:36:33
Rank: #14984 (+2)
25.2M → Finish
8:21/mi
8:31 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:50
Pace8:04 /mi
2nd Half
Distance13.11 mi
Time1:50:43
Pace8:27 /mi
📊Positive Split: 4.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:4225:118:0625:11
8:06
-
10K
6.21 mi11:47:3650:058:0424:54
8:01
-0:05
15K
9.32 mi12:12:211:14:508:0224:45
7:58
-0:03
20K
12.43 mi12:38:001:40:298:0525:39
8:15
+0:17
Half
13.11 mi12:43:211:45:508:045:21
7:50
-0:25
25K
15.53 mi13:03:252:05:548:0620:04
8:17
+0:27
30K
18.64 mi13:30:012:32:308:1126:36
8:34
+0:17
20M
20.00 mi13:41:172:43:468:1111:16
8:17
-0:17
21M
21.00 mi13:50:042:52:338:138:47
8:47
+0:30
35K
21.75 mi13:56:102:58:398:136:06
8:09
-0:38
23M
23.00 mi14:06:353:09:048:1310:25
8:19
+0:10
24M
24.00 mi14:14:513:17:208:138:16
8:16
-0:03
40K
24.85 mi14:22:143:24:438:147:23
8:38
+0:22
25.2M
25.20 mi14:25:333:28:028:153:19
9:37
+0:59
Finish
26.22 mi14:34:043:36:338:168:31
8:21
-1:16

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

7:50 /mi

Average Pace

8:16 /mi

Slowest Pace

9:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

55:00

25% of race

Time at Steady Pace

1:55:28

53% of race

Time at Slower Pace

46:05

21% of race

Average Pace: 8:16 /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 mi11:22:4225:118:0625:11
8:06
#17366
10K
6.21 mi11:47:3650:058:0424:54
8:01
#16967
15K
9.32 mi12:12:211:14:508:0224:45
7:58
#16538
20K
12.43 mi12:38:001:40:298:0525:39
8:15
#16566
Half
13.11 mi12:43:211:45:508:045:21
7:50
#16470
25K
15.53 mi13:03:252:05:548:0620:04
8:17
#16351
30K
18.64 mi13:30:012:32:308:1126:36
8:34
#16091
20M
20.00 mi13:41:172:43:468:1111:16
8:17
#15766
21M
21.00 mi13:50:042:52:338:138:47
8:47
#15508
35K
21.75 mi13:56:102:58:398:136:06
8:09
#15413
23M
23.00 mi14:06:353:09:048:1310:25
8:19
#15178
24M
24.00 mi14:14:513:17:208:138:16
8:16
#15042
40K
24.85 mi14:22:143:24:438:147:23
8:38
#15007
25.2M
25.20 mi14:25:333:28:028:153:19
9:37
#14986
Finish
26.22 mi14:34:043:36:338:168:31
8:21
#14984
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi173665955595515776(Top 56%)5024(Top 41%)5024(Top 92%)
10K6.21 mi3.10 mi16967+3995707+2485707+24816574(Top 58%)5469(Top 45%)5469(Top 100%)
15K9.32 mi3.11 mi16538+4295453+2545453+25415776(Top 56%)5024(Top 41%)5024(Top 92%)
20K12.43 mi3.11 mi16566-285479-265479-2616646(Top 59%)5577(Top 46%)5577(Top 102%)
Half13.11 mi0.68 mi16470+965421+585421+5814515(Top 51%)4376(Top 36%)4376(Top 80%)
25K15.53 mi2.42 mi16351+1195375+465375+4615757(Top 55%)5169(Top 42%)5169(Top 95%)
30K18.64 mi3.11 mi16091+2605280+955280+9515142(Top 53%)4985(Top 41%)4985(Top 91%)
20M20.00 mi1.36 mi15766+3255135+1455135+14512386(Top 44%)3649(Top 30%)3649(Top 67%)
21M21.00 mi1.00 mi15508+2585017+1185017+11812148(Top 43%)3693(Top 30%)3693(Top 68%)
35K21.75 mi0.75 mi15413+954983+344983+3413229(Top 47%)4307(Top 35%)4307(Top 79%)
23M23.00 mi1.25 mi15178+2354875+1084875+10812123(Top 43%)3814(Top 31%)3814(Top 70%)
24M24.00 mi1.00 mi15042+1364829+464829+4612971(Top 46%)4319(Top 35%)4319(Top 79%)
40K24.85 mi0.85 mi15007+354838-94838-914215(Top 50%)5095(Top 42%)5095(Top 93%)
25.2M25.20 mi0.35 mi14986+214845-74845-715068(Top 53%)5615(Top 46%)5615(Top 103%)
Finish26.22 mi1.02 mi14984+24867-224867-2215246(Top 54%)5629(Top 46%)5629(Top 103%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21story building
+97ft-345ft

Overall

15776

Females

5024

F18-39

5024

5K→10K

3.1 - 6.2 mi

Top 58%
×5story building
+79ft-138ft

Overall

16574

Females

5469

F18-39

5469

10K→15K

6.2 - 9.3 mi

Top 56%
×3story building
+67ft-78ft

Overall

15776

Females

5024

F18-39

5024

15K→20K

9.3 - 12.4 mi

Top 59%
×5story building
+106ft-86ft

Overall

16646

Females

5577

F18-39

5577

20K→Half

12.4 - 13.1 mi

Top 51%
×2story building
+19ft-37ft

Overall

14515

Females

4376

F18-39

4376

Half→25K

13.1 - 15.5 mi

Top 55%
×4story building
+66ft-88ft

Overall

15757

Females

5169

F18-39

5169

25K→30K

15.5 - 18.6 mi

Top 53%
×9story building
+181ft-148ft

Overall

15142

Females

4985

F18-39

4985

30K→20M

18.6 - 20.0 mi

Top 44%
×5story building
+64ft-50ft

Overall

12386

Females

3649

F18-39

3649

20M→21M

20.0 - 21.0 mi

Top 43%
×8story building
+106ft-24ft

Overall

12148

Females

3693

F18-39

3693

21M→35K

21.0 - 21.8 mi

Top 47%
×7story building
+17ft-86ft

Overall

13229

Females

4307

F18-39

4307

35K→23M

21.8 - 23.0 mi

Top 43%
×5story building
+23ft-63ft

Overall

12123

Females

3814

F18-39

3814

23M→24M

23.0 - 24.0 mi

Top 46%
×6story building
+12ft-82ft

Overall

12971

Females

4319

F18-39

4319

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

14215

Females

5095

F18-39

5095

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

15068

Females

5615

F18-39

5615

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

15246

Females

5629

F18-39

5629

Passing Analysis

Category:
Athletes Passed
3206
Passed By
824
Net Change
+2382
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17366
5K → 10K537138+399#17366#16967
10K → 15K46536+429#16967#16538
15K → 20K204232-28#16538#16566
20K → Half1048+96#16566#16470
Half → 25K21192+119#16470#16351
25K → 30K35393+260#16351#16091
30K → 20M33510+325#16091#15766
20M → 21M27214+258#15766#15508
21M → 35K11217+95#15508#15413
35K → 23M24712+235#15413#15178
23M → 24M15822+136#15178#15042
24M → 40K8247+35#15042#15007
40K → 25.2M5231+21#15007#14986
25.2M → Finish7472+2#14986#14984
TOTALS3206824+2382
📊

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