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BOSTON MARATHON 2025

Lori Duffant

Bib: 24983•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F60-64)
#0 / 624
Top 27%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:52
Rank: #22300
Start → 5K
27:52 | 8:58/mi
10K· 6.21 mi
56:12
Rank: #22599 (-299)
5K → 10K
28:20 | 9:07/mi
15K· 9.32 mi
1:24:27
Rank: #22538 (+61)
10K → 15K
28:15 | 9:06/mi
20K· 12.43 mi
1:52:17
Rank: #22081 (+457)
15K → 20K
27:50 | 8:58/mi
Half· 13.11 mi
1:58:14
Rank: #22011 (+70)
20K → Half
5:57 | 8:43/mi
25K· 15.53 mi
2:20:08
Rank: #21646 (+365)
Half → 25K
21:54 | 9:02/mi
30K· 18.64 mi
2:49:11
Rank: #21221 (+425)
25K → 30K
29:03 | 9:21/mi
20M
3:02:05
Rank: #21044 (+177)
30K → 20M
12:54 | 9:30/mi
21M
3:12:26
Rank: #20951 (+93)
20M → 21M
10:21 | 10:21/mi
35K· 21.75 mi
3:19:06
Rank: #20828 (+123)
21M → 35K
6:40 | 8:55/mi
23M
3:30:53
Rank: #20684 (+144)
35K → 23M
11:47 | 9:25/mi
24M
3:40:06
Rank: #20596 (+88)
23M → 24M
9:13 | 9:13/mi
40K· 24.85 mi
3:48:10
Rank: #20533 (+63)
24M → 40K
8:04 | 9:26/mi
25.2M
3:51:45
Rank: #20519 (+14)
40K → 25.2M
3:35 | 10:23/mi
Finish· 26.22 mi
4:00:55
Rank: #20496 (+23)
25.2M → Finish
9:10 | 9:00/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:14
Pace9:01 /mi
2nd Half
Distance13.11 mi
Time2:02:41
Pace9:22 /mi
📊Positive Split: 3.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:5227:528:5827:52
8:58
-
10K
6.21 mi11:56:1256:129:0328:20
9:07
+0:09
15K
9.32 mi12:24:271:24:279:0428:15
9:06
-0:01
20K
12.43 mi12:52:171:52:179:0227:50
8:58
-0:08
Half
13.11 mi12:58:141:58:149:015:57
8:43
-0:15
25K
15.53 mi13:20:082:20:089:0121:54
9:02
+0:19
30K
18.64 mi13:49:112:49:119:0529:03
9:21
+0:19
20M
20.00 mi14:02:053:02:059:0612:54
9:30
+0:09
21M
21.00 mi14:12:263:12:269:1010:21
10:21
+0:51
35K
21.75 mi14:19:063:19:069:096:40
8:55
-1:26
23M
23.00 mi14:30:533:30:539:1011:47
9:25
+0:30
24M
24.00 mi14:40:063:40:069:109:13
9:13
-0:12
40K
24.85 mi14:48:103:48:109:118:04
9:26
+0:13
25.2M
25.20 mi14:51:453:51:459:123:35
10:23
+0:57
Finish
26.22 mi15:00:554:00:559:129:10
9:00
-1:23

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

8:43 /mi

Average Pace

9:12 /mi

Slowest Pace

10:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:46:59

94% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

13:56

6% of race

Average Pace: 9:11 /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 mi11:27:5227:528:5827:52
8:58
#22300
10K
6.21 mi11:56:1256:129:0328:20
9:07
#22599
15K
9.32 mi12:24:271:24:279:0428:15
9:06
#22538
20K
12.43 mi12:52:171:52:179:0227:50
8:58
#22081
Half
13.11 mi12:58:141:58:149:015:57
8:43
#22011
25K
15.53 mi13:20:082:20:089:0121:54
9:02
#21646
30K
18.64 mi13:49:112:49:119:0529:03
9:21
#21221
20M
20.00 mi14:02:053:02:059:0612:54
9:30
#21044
21M
21.00 mi14:12:263:12:269:1010:21
10:21
#20951
35K
21.75 mi14:19:063:19:069:096:40
8:55
#20828
23M
23.00 mi14:30:533:30:539:1011:47
9:25
#20684
24M
24.00 mi14:40:063:40:069:109:13
9:13
#20596
40K
24.85 mi14:48:103:48:109:118:04
9:26
#20533
25.2M
25.20 mi14:51:453:51:459:123:35
10:23
#20519
Finish
26.22 mi15:00:554:00:559:129:10
9:00
#20496
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi223008795879522429(Top 79%)8788(Top 72%)8788(Top 1408%)
10K6.21 mi3.10 mi22599-2998938-1438938-14322895(Top 81%)9066(Top 74%)9066(Top 1453%)
15K9.32 mi3.11 mi22538+618877+618877+6122429(Top 79%)8788(Top 72%)8788(Top 1408%)
20K12.43 mi3.11 mi22081+4578640+2378640+23720772(Top 73%)7931(Top 65%)7931(Top 1271%)
Half13.11 mi0.68 mi22011+708602+388602+3820536(Top 72%)7784(Top 64%)7784(Top 1247%)
25K15.53 mi2.42 mi21646+3658407+1958407+19520064(Top 71%)7569(Top 62%)7569(Top 1213%)
30K18.64 mi3.11 mi21221+4258201+2068201+20619358(Top 68%)7321(Top 60%)7321(Top 1173%)
20M20.00 mi1.36 mi21044+1778132+698132+6919162(Top 67%)7352(Top 60%)7352(Top 1178%)
21M21.00 mi1.00 mi20951+938096+368096+3619561(Top 69%)7662(Top 63%)7662(Top 1228%)
35K21.75 mi0.75 mi20828+1238046+508046+5017863(Top 63%)6839(Top 56%)6839(Top 1096%)
23M23.00 mi1.25 mi20684+1447992+547992+5418311(Top 64%)7148(Top 58%)7148(Top 1146%)
24M24.00 mi1.00 mi20596+887960+327960+3218452(Top 65%)7281(Top 60%)7281(Top 1167%)
40K24.85 mi0.85 mi20533+637938+227938+2218463(Top 65%)7371(Top 60%)7371(Top 1181%)
25.2M25.20 mi0.35 mi20519+147939-17939-118661(Top 66%)7472(Top 61%)7472(Top 1197%)
Finish26.22 mi1.02 mi20496+237938+17938+119060(Top 67%)7639(Top 62%)7639(Top 1224%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21stories
+97ft-345ft

Overall

22429

Females

8788

F60-64

8788

5K→10K

3.1 - 6.2 mi

Top 81%
×5stories
+79ft-138ft

Overall

22895

Females

9066

F60-64

9066

10K→15K

6.2 - 9.3 mi

Top 79%
×3stories
+67ft-78ft

Overall

22429

Females

8788

F60-64

8788

15K→20K

9.3 - 12.4 mi

Top 73%
×5stories
+106ft-86ft

Overall

20772

Females

7931

F60-64

7931

20K→Half

12.4 - 13.1 mi

Top 72%
×2stories
+19ft-37ft

Overall

20536

Females

7784

F60-64

7784

Half→25K

13.1 - 15.5 mi

Top 71%
×4stories
+66ft-88ft

Overall

20064

Females

7569

F60-64

7569

25K→30K

15.5 - 18.6 mi

Top 68%
×9stories
+181ft-148ft

Overall

19358

Females

7321

F60-64

7321

30K→20M

18.6 - 20.0 mi

Top 67%
×5stories
+64ft-50ft

Overall

19162

Females

7352

F60-64

7352

20M→21M

20.0 - 21.0 mi

Top 69%
×8stories
+106ft-24ft

Overall

19561

Females

7662

F60-64

7662

21M→35K

21.0 - 21.8 mi

Top 63%
×7stories
+17ft-86ft

Overall

17863

Females

6839

F60-64

6839

35K→23M

21.8 - 23.0 mi

Top 64%
×5stories
+23ft-63ft

Overall

18311

Females

7148

F60-64

7148

23M→24M

23.0 - 24.0 mi

Top 65%
×6stories
+12ft-82ft

Overall

18452

Females

7281

F60-64

7281

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

18463

Females

7371

F60-64

7371

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

18661

Females

7472

F60-64

7472

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2stories
+22ft-21ft

Overall

19060

Females

7639

F60-64

7639

Passing Analysis

Category:
Athletes Passed
2648
Passed By
844
Net Change
+1804
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22300
5K → 10K137436-299#22300#22599
10K → 15K209148+61#22599#22538
15K → 20K47215+457#22538#22081
20K → Half722+70#22081#22011
Half → 25K37712+365#22011#21646
25K → 30K45631+425#21646#21221
30K → 20M19720+177#21221#21044
20M → 21M13946+93#21044#20951
21M → 35K1285+123#20951#20828
35K → 23M16723+144#20828#20684
23M → 24M10921+88#20684#20596
24M → 40K9027+63#20596#20533
40K → 25.2M3319+14#20533#20519
25.2M → Finish6239+23#20519#20496
TOTALS2648844+1804
📊

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