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BOSTON MARATHON 2025

Maria Defendini

Bib: 28176•F

MD

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

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
10:01/mi
31:08
↑ 97↓ 3451.5%
10K· 6.21 mi
10:49/mi
1:04:43
↑ 79↓ 1380.4%
15K· 9.32 mi
10:27/mi
1:37:12
↑ 67↓ 78
20K· 12.43 mi
10:57/mi
2:11:12
↑ 106↓ 860.1%
Half· 13.11 mi
10:26/mi
2:18:19
↑ 19↓ 370.5%
25K· 15.53 mi
11:32/mi
2:46:17
↑ 66↓ 880.2%
30K· 18.64 mi
12:26/mi
3:24:55
↑ 181↓ 1480.2%
20M
12:41/mi
3:42:09
↑ 64↓ 500.2%
21M
13:51/mi
3:56:00
↑ 106↓ 241.6%
35K· 21.75 mi
10:48/mi
4:04:05
↑ 17↓ 861.7%
23M
11:24/mi
4:18:21
↑ 23↓ 630.6%
24M
10:49/mi
4:29:10
↓ 821.3%
40K· 24.85 mi
11:32/mi
4:39:02
↓ 200.3%
25.2M
12:25/mi
4:43:19
↑ 13↓ 160.2%
Finish· 26.22 mi
10:30/mi
4:54:01
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:18:19
Pace10:33 /mi
2nd Half
Distance13.11 mi
Time2:35:42
Pace11:53 /mi
📊Positive Split: 12.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:2331:0810:0131:08
10:01
-
10K
6.21 mi12:26:581:04:4310:2533:35
10:49
+0:48
15K
9.32 mi12:59:271:37:1210:2632:29
10:27
-0:22
20K
12.43 mi13:33:272:11:1210:3334:00
10:57
+0:30
Half
13.11 mi13:40:342:18:1910:337:07
10:26
-0:31
25K
15.53 mi14:08:322:46:1710:4227:58
11:32
+1:06
30K
18.64 mi14:47:103:24:5511:0038:38
12:26
+0:54
20M
20.00 mi15:04:243:42:0911:0617:14
12:41
+0:15
21M
21.00 mi15:18:153:56:0011:1413:51
13:51
+1:10
35K
21.75 mi15:26:204:04:0511:138:05
10:48
-3:03
23M
23.00 mi15:40:364:18:2111:1414:16
11:24
+0:36
24M
24.00 mi15:51:254:29:1011:1310:49
10:49
-0:35
40K
24.85 mi16:01:174:39:0211:149:52
11:32
+0:43
25.2M
25.20 mi16:05:344:43:1911:154:17
12:25
+0:53
Finish
26.22 mi16:16:164:54:0111:1310:42
10:30
-1:55

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

10:01 /mi

Average Pace

11:13 /mi

Slowest Pace

13:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

38:15

13% of race

Time at Steady Pace

2:23:56

49% of race

Time at Slower Pace

1:51:50

38% of race

Average Pace: 11:13 /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 mi11:53:2331:0810:0131:08
10:01
#25620
10K
6.21 mi12:26:581:04:4310:2533:35
10:49
#26320
15K
9.32 mi12:59:271:37:1210:2632:29
10:27
#26145
20K
12.43 mi13:33:272:11:1210:3334:00
10:57
#26074
Half
13.11 mi13:40:342:18:1910:337:07
10:26
#26051
25K
15.53 mi14:08:322:46:1710:4227:58
11:32
#26039
30K
18.64 mi14:47:103:24:5511:0038:38
12:26
#26053
20M
20.00 mi15:04:243:42:0911:0617:14
12:41
#26084
21M
21.00 mi15:18:153:56:0011:1413:51
13:51
#26099
35K
21.75 mi15:26:204:04:0511:138:05
10:48
#26025
23M
23.00 mi15:40:364:18:2111:1414:16
11:24
#25943
24M
24.00 mi15:51:254:29:1011:1310:49
10:49
#25882
40K
24.85 mi16:01:174:39:0211:149:52
11:32
#25839
25.2M
25.20 mi16:05:344:43:1911:154:17
12:25
#25813
Finish
26.22 mi16:16:164:54:0111:1310:42
10:30
#25793
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi25620105441054425843(Top 91%)10700(Top 88%)10700(Top 590%)
10K6.21 mi3.10 mi26320-70010943-39910943-39926788(Top 94%)11224(Top 92%)11224(Top 619%)
15K9.32 mi3.11 mi26145+17510861+8210861+8225843(Top 91%)10700(Top 88%)10700(Top 590%)
20K12.43 mi3.11 mi26074+7110827+3410827+3425908(Top 91%)10758(Top 88%)10758(Top 593%)
Half13.11 mi0.68 mi26051+2310818+910818+925664(Top 90%)10645(Top 87%)10645(Top 587%)
25K15.53 mi2.42 mi26039+12108181081825902(Top 91%)10808(Top 88%)10808(Top 596%)
30K18.64 mi3.11 mi26053-1410853-3510853-3526099(Top 92%)10995(Top 90%)10995(Top 606%)
20M20.00 mi1.36 mi26084-3110881-2810881-2826106(Top 92%)11064(Top 90%)11064(Top 610%)
21M21.00 mi1.00 mi26099-1510906-2510906-2526051(Top 92%)11076(Top 91%)11076(Top 611%)
35K21.75 mi0.75 mi26025+7410866+4010866+4023796(Top 84%)9949(Top 81%)9949(Top 549%)
23M23.00 mi1.25 mi25943+8210829+3710829+3724061(Top 85%)10134(Top 83%)10134(Top 559%)
24M24.00 mi1.00 mi25882+6110808+2110808+2123580(Top 83%)9918(Top 81%)9918(Top 547%)
40K24.85 mi0.85 mi25839+4310799+910799+924191(Top 85%)10266(Top 84%)10266(Top 566%)
25.2M25.20 mi0.35 mi25813+2610793+610793+624002(Top 85%)10178(Top 83%)10178(Top 561%)
Finish26.22 mi1.02 mi25793+2010791+210791+224266(Top 85%)10302(Top 84%)10302(Top 568%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 91%
×21story building
+97ft-345ft

Overall

25843

Females

10700

F45-49

10700

5K→10K

3.1 - 6.2 mi

Top 94%
×5story building
+79ft-138ft

Overall

26788

Females

11224

F45-49

11224

10K→15K

6.2 - 9.3 mi

Top 91%
×3story building
+67ft-78ft

Overall

25843

Females

10700

F45-49

10700

15K→20K

9.3 - 12.4 mi

Top 91%
×5story building
+106ft-86ft

Overall

25908

Females

10758

F45-49

10758

20K→Half

12.4 - 13.1 mi

Top 90%
×2story building
+19ft-37ft

Overall

25664

Females

10645

F45-49

10645

Half→25K

13.1 - 15.5 mi

Top 91%
×4story building
+66ft-88ft

Overall

25902

Females

10808

F45-49

10808

25K→30K

15.5 - 18.6 mi

Top 92%
×9story building
+181ft-148ft

Overall

26099

Females

10995

F45-49

10995

30K→20M

18.6 - 20.0 mi

Top 92%
×5story building
+64ft-50ft

Overall

26106

Females

11064

F45-49

11064

20M→21M

20.0 - 21.0 mi

Top 92%
×8story building
+106ft-24ft

Overall

26051

Females

11076

F45-49

11076

21M→35K

21.0 - 21.8 mi

Top 84%
×7story building
+17ft-86ft

Overall

23796

Females

9949

F45-49

9949

35K→23M

21.8 - 23.0 mi

Top 85%
×5story building
+23ft-63ft

Overall

24061

Females

10134

F45-49

10134

23M→24M

23.0 - 24.0 mi

Top 83%
×6story building
+12ft-82ft

Overall

23580

Females

9918

F45-49

9918

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

24191

Females

10266

F45-49

10266

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

24002

Females

10178

F45-49

10178

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2story building
+22ft-21ft

Overall

24266

Females

10302

F45-49

10302

Passing Analysis

Category:
Athletes Passed
1049
Passed By
1222
Net Change
-173
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25620
5K → 10K31731-700#25620#26320
10K → 15K21742+175#26320#26145
15K → 20K14776+71#26145#26074
20K → Half3815+23#26074#26051
Half → 25K8674+12#26051#26039
25K → 30K108122-14#26039#26053
30K → 20M4677-31#26053#26084
20M → 21M3146-15#26084#26099
21M → 35K773+74#26099#26025
35K → 23M886+82#26025#25943
23M → 24M654+61#25943#25882
24M → 40K529+43#25882#25839
40K → 25.2M282+26#25839#25813
25.2M → Finish3515+20#25813#25793
TOTALS10491222-173
📊

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