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BOSTON MARATHON 2025

Kerri Dienhart

Bib: 19061•F

FL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 48%
Masters (Masters Women)
#0 / 6759
Top 36%
Division (F45-49)
#0 / 1813
Top 45%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:08
Rank: #17282
Start → 5K
8:05/mi
25:08 split
10K· 6.21 mi
50:10
Rank: #17062 (+220)
5K → 10K
8:03/mi
25:02 split
15K· 9.32 mi
1:15:13
Rank: #16851 (+211)
10K → 15K
8:04/mi
25:03 split
20K· 12.43 mi
1:40:33
Rank: #16616 (+235)
15K → 20K
8:09/mi
25:20 split
Half· 13.11 mi
1:46:05
Rank: #16613 (+3)
20K → Half
8:07/mi
5:32 split
25K· 15.53 mi
2:06:10
Rank: #16470 (+143)
Half → 25K
8:17/mi
20:05 split
30K· 18.64 mi
2:32:51
Rank: #16214 (+256)
25K → 30K
8:35/mi
26:41 split
20M
2:44:50
Rank: #16152 (+62)
30K → 20M
8:49/mi
11:59 split
21M
2:54:17
Rank: #16076 (+76)
20M → 21M
9:27/mi
9:27 split
35K· 21.75 mi
3:00:14
Rank: #15884 (+192)
21M → 35K
7:57/mi
5:57 split
23M
3:11:21
Rank: #15810 (+74)
35K → 23M
8:53/mi
11:07 split
24M
3:20:22
Rank: #15899 (-89)
23M → 24M
9:01/mi
9:01 split
40K· 24.85 mi
3:28:47
Rank: #16086 (-187)
24M → 40K
9:51/mi
8:25 split
25.2M
3:32:38
Rank: #16201 (-115)
40K → 25.2M
11:10/mi
3:51 split
Finish· 26.22 mi
3:43:19
Rank: #16705 (-504)
25.2M → Finish
10:29/mi
10:41 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:05
Pace8:06 /mi
2nd Half
Distance13.11 mi
Time1:57:14
Pace8:57 /mi
📊Positive Split: 10.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:4525:088:0525:08
8:05
-
10K
6.21 mi11:49:4750:108:0425:02
8:03
-0:02
15K
9.32 mi12:14:501:15:138:0425:03
8:04
+0:01
20K
12.43 mi12:40:101:40:338:0525:20
8:09
+0:05
Half
13.11 mi12:45:421:46:058:065:32
8:07
-0:02
25K
15.53 mi13:05:472:06:108:0720:05
8:17
+0:10
30K
18.64 mi13:32:282:32:518:1226:41
8:35
+0:18
20M
20.00 mi13:44:272:44:508:1411:59
8:49
+0:14
21M
21.00 mi13:53:542:54:178:189:27
9:27
+0:38
35K
21.75 mi13:59:513:00:148:175:57
7:57
-1:30
23M
23.00 mi14:10:583:11:218:1911:07
8:53
+0:56
24M
24.00 mi14:19:593:20:228:219:01
9:01
+0:08
40K
24.85 mi14:28:243:28:478:248:25
9:51
+0:50
25.2M
25.20 mi14:32:153:32:388:263:51
11:10
+1:19
Finish
26.22 mi14:42:563:43:198:3110:41
10:29
-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

7:57 /mi

Average Pace

8:31 /mi

Slowest Pace

11:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:21:10

36% of race

Time at Steady Pace

1:49:45

49% of race

Time at Slower Pace

32:24

15% of race

Average Pace: 8:31 /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 mi11:24:4525:088:0525:08
8:05
#17282
10K
6.21 mi11:49:4750:108:0425:02
8:03
#17062
15K
9.32 mi12:14:501:15:138:0425:03
8:04
#16851
20K
12.43 mi12:40:101:40:338:0525:20
8:09
#16616
Half
13.11 mi12:45:421:46:058:065:32
8:07
#16613
25K
15.53 mi13:05:472:06:108:0720:05
8:17
#16470
30K
18.64 mi13:32:282:32:518:1226:41
8:35
#16214
20M
20.00 mi13:44:272:44:508:1411:59
8:49
#16152
21M
21.00 mi13:53:542:54:178:189:27
9:27
#16076
35K
21.75 mi13:59:513:00:148:175:57
7:57
#15884
23M
23.00 mi14:10:583:11:218:1911:07
8:53
#15810
24M
24.00 mi14:19:593:20:228:219:01
9:01
#15899
40K
24.85 mi14:28:243:28:478:248:25
9:51
#16086
25.2M
25.20 mi14:32:153:32:388:263:51
11:10
#16201
Finish
26.22 mi14:42:563:43:198:3110:41
10:29
#16705
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi172825908590816521(Top 58%)5453(Top 45%)5453(Top 301%)
10K6.21 mi3.10 mi17062+2205762+1465762+14616906(Top 60%)5651(Top 46%)5651(Top 312%)
15K9.32 mi3.11 mi16851+2115637+1255637+12516521(Top 58%)5453(Top 45%)5453(Top 301%)
20K12.43 mi3.11 mi16616+2355510+1275510+12716026(Top 56%)5228(Top 43%)5228(Top 288%)
Half13.11 mi0.68 mi16613+35512-25512-216747(Top 59%)5622(Top 46%)5622(Top 310%)
25K15.53 mi2.42 mi16470+1435445+675445+6715829(Top 56%)5217(Top 43%)5217(Top 288%)
30K18.64 mi3.11 mi16214+2565350+955350+9515327(Top 54%)5091(Top 42%)5091(Top 281%)
20M20.00 mi1.36 mi16152+625357-75357-715789(Top 56%)5475(Top 45%)5475(Top 302%)
21M21.00 mi1.00 mi16076+765342+155342+1515875(Top 56%)5644(Top 46%)5644(Top 311%)
35K21.75 mi0.75 mi15884+1925258+845258+8412028(Top 42%)3685(Top 30%)3685(Top 203%)
23M23.00 mi1.25 mi15810+745254+45254+415576(Top 55%)5654(Top 46%)5654(Top 312%)
24M24.00 mi1.00 mi15899-895320-665320-6617463(Top 61%)6740(Top 55%)6740(Top 372%)
40K24.85 mi0.85 mi16086-1875456-1365456-13619940(Top 70%)8119(Top 66%)8119(Top 448%)
25.2M25.20 mi0.35 mi16201-1155527-715527-7121131(Top 74%)8714(Top 71%)8714(Top 481%)
Finish26.22 mi1.02 mi16705-5045852-3255852-32524248(Top 85%)10284(Top 84%)10284(Top 567%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21story building
+97ft-345ft

Overall

16521

Females

5453

F45-49

5453

5K→10K

3.1 - 6.2 mi

Top 60%
×5story building
+79ft-138ft

Overall

16906

Females

5651

F45-49

5651

10K→15K

6.2 - 9.3 mi

Top 58%
×3story building
+67ft-78ft

Overall

16521

Females

5453

F45-49

5453

15K→20K

9.3 - 12.4 mi

Top 56%
×5story building
+106ft-86ft

Overall

16026

Females

5228

F45-49

5228

20K→Half

12.4 - 13.1 mi

Top 59%
×2story building
+19ft-37ft

Overall

16747

Females

5622

F45-49

5622

Half→25K

13.1 - 15.5 mi

Top 56%
×4story building
+66ft-88ft

Overall

15829

Females

5217

F45-49

5217

25K→30K

15.5 - 18.6 mi

Top 54%
×9story building
+181ft-148ft

Overall

15327

Females

5091

F45-49

5091

30K→20M

18.6 - 20.0 mi

Top 56%
×5story building
+64ft-50ft

Overall

15789

Females

5475

F45-49

5475

20M→21M

20.0 - 21.0 mi

Top 56%
×8story building
+106ft-24ft

Overall

15875

Females

5644

F45-49

5644

21M→35K

21.0 - 21.8 mi

Top 42%
×7story building
+17ft-86ft

Overall

12028

Females

3685

F45-49

3685

35K→23M

21.8 - 23.0 mi

Top 55%
×5story building
+23ft-63ft

Overall

15576

Females

5654

F45-49

5654

23M→24M

23.0 - 24.0 mi

Top 61%
×6story building
+12ft-82ft

Overall

17463

Females

6740

F45-49

6740

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

19940

Females

8119

F45-49

8119

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

21131

Females

8714

F45-49

8714

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2story building
+22ft-21ft

Overall

24248

Females

10284

F45-49

10284

Passing Analysis

Category:
Athletes Passed
2387
Passed By
1810
Net Change
+577
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17282
5K → 10K421201+220#17282#17062
10K → 15K319108+211#17062#16851
15K → 20K32792+235#16851#16616
20K → Half3734+3#16616#16613
Half → 25K21471+143#16613#16470
25K → 30K362106+256#16470#16214
30K → 20M14482+62#16214#16152
20M → 21M13458+76#16152#16076
21M → 35K1975+192#16076#15884
35K → 23M14369+74#15884#15810
23M → 24M41130-89#15810#15899
24M → 40K26213-187#15899#16086
40K → 25.2M7122-115#16086#16201
25.2M → Finish15519-504#16201#16705
TOTALS23871810+577
📊

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