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BOSTON MARATHON 2025

Bobbie Mastronardi

Bib: 20086•F

WI

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F40-44)
#0 / 1718
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:29
Rank: #15529
Start → 5K
24:29 | 7:53/mi
10K· 6.21 mi
48:36
Rank: #14971 (+558)
5K → 10K
24:07 | 7:46/mi
15K· 9.32 mi
1:13:25
Rank: #15312 (-341)
10K → 15K
24:49 | 7:59/mi
20K· 12.43 mi
1:38:38
Rank: #15427 (-115)
15K → 20K
25:13 | 8:07/mi
Half· 13.11 mi
1:44:10
Rank: #15504 (-77)
20K → Half
5:32 | 8:07/mi
25K· 15.53 mi
2:04:17
Rank: #15546 (-42)
Half → 25K
20:07 | 8:18/mi
30K· 18.64 mi
2:31:39
Rank: #15787 (-241)
25K → 30K
27:22 | 8:49/mi
20M
2:44:20
Rank: #15978 (-191)
30K → 20M
12:41 | 9:20/mi
21M
2:58:07
Rank: #17244 (-1266)
20M → 21M
13:47 | 13:47/mi
35K· 21.75 mi
3:05:50
Rank: #17575 (-331)
21M → 35K
7:43 | 10:19/mi
23M
3:19:21
Rank: #18084 (-509)
35K → 23M
13:31 | 10:48/mi
24M
3:30:17
Rank: #18540 (-456)
23M → 24M
10:56 | 10:56/mi
40K· 24.85 mi
3:41:37
Rank: #19246 (-706)
24M → 40K
11:20 | 13:15/mi
25.2M
3:46:06
Rank: #19418 (-172)
40K → 25.2M
4:29 | 13:00/mi
Finish· 26.22 mi
3:56:10
Rank: #19587 (-169)
25.2M → Finish
10:04 | 9:53/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:10
Pace7:57 /mi
2nd Half
Distance13.11 mi
Time2:12:00
Pace10:04 /mi
📊Positive Split: 26.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:3124:297:5324:29
7:53
-
10K
6.21 mi11:42:3848:367:4924:07
7:46
-0:07
15K
9.32 mi12:07:271:13:257:5324:49
7:59
+0:13
20K
12.43 mi12:32:401:38:387:5625:13
8:07
+0:08
Half
13.11 mi12:38:121:44:107:575:32
8:07
0:00
25K
15.53 mi12:58:192:04:178:0020:07
8:18
+0:11
30K
18.64 mi13:25:412:31:398:0827:22
8:49
+0:31
20M
20.00 mi13:38:222:44:208:1312:41
9:20
+0:31
21M
21.00 mi13:52:092:58:078:2913:47
13:47
+4:27
35K
21.75 mi13:59:523:05:508:337:43
10:19
-3:28
23M
23.00 mi14:13:233:19:218:4013:31
10:48
+0:29
24M
24.00 mi14:24:193:30:178:4610:56
10:56
+0:08
40K
24.85 mi14:35:393:41:378:5511:20
13:15
+2:19
25.2M
25.20 mi14:40:083:46:068:584:29
13:00
-0:15
Finish
26.22 mi14:50:123:56:109:0110:04
9:53
-3:07

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

7:46 /mi

Average Pace

9:01 /mi

Slowest Pace

13:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:04:17

53% of race

Time at Steady Pace

57:50

24% of race

Time at Slower Pace

54:03

23% of race

Average Pace: 9:00 /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 mi11:18:3124:297:5324:29
7:53
#15529
10K
6.21 mi11:42:3848:367:4924:07
7:46
#14971
15K
9.32 mi12:07:271:13:257:5324:49
7:59
#15312
20K
12.43 mi12:32:401:38:387:5625:13
8:07
#15427
Half
13.11 mi12:38:121:44:107:575:32
8:07
#15504
25K
15.53 mi12:58:192:04:178:0020:07
8:18
#15546
30K
18.64 mi13:25:412:31:398:0827:22
8:49
#15787
20M
20.00 mi13:38:222:44:208:1312:41
9:20
#15978
21M
21.00 mi13:52:092:58:078:2913:47
13:47
#17244
35K
21.75 mi13:59:523:05:508:337:43
10:19
#17575
23M
23.00 mi14:13:233:19:218:4013:31
10:48
#18084
24M
24.00 mi14:24:193:30:178:4610:56
10:56
#18540
40K
24.85 mi14:35:393:41:378:5511:20
13:15
#19246
25.2M
25.20 mi14:40:083:46:068:584:29
13:00
#19418
Finish
26.22 mi14:50:123:56:109:0110:04
9:53
#19587
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi155294851485115981(Top 56%)5136(Top 42%)5136(Top 299%)
10K6.21 mi3.10 mi14971+5584535+3164535+31614492(Top 51%)4250(Top 35%)4250(Top 247%)
15K9.32 mi3.11 mi15312-3414740-2054740-20515981(Top 56%)5136(Top 42%)5136(Top 299%)
20K12.43 mi3.11 mi15427-1154822-824822-8215780(Top 56%)5089(Top 42%)5089(Top 296%)
Half13.11 mi0.68 mi15504-774865-434865-4316773(Top 59%)5648(Top 46%)5648(Top 329%)
25K15.53 mi2.42 mi15546-424915-504915-5015923(Top 56%)5274(Top 43%)5274(Top 307%)
30K18.64 mi3.11 mi15787-2415103-1885103-18816667(Top 59%)5843(Top 48%)5843(Top 340%)
20M20.00 mi1.36 mi15978-1915259-1565259-15618462(Top 65%)6984(Top 57%)6984(Top 407%)
21M21.00 mi1.00 mi17244-12666019-7606019-76025991(Top 92%)11038(Top 90%)11038(Top 642%)
35K21.75 mi0.75 mi17575-3316230-2116230-21122741(Top 80%)9404(Top 77%)9404(Top 547%)
23M23.00 mi1.25 mi18084-5096542-3126542-31222744(Top 80%)9467(Top 77%)9467(Top 551%)
24M24.00 mi1.00 mi18540-4566818-2766818-27623861(Top 84%)10044(Top 82%)10044(Top 585%)
40K24.85 mi0.85 mi19246-7067237-4197237-41926555(Top 93%)11420(Top 93%)11420(Top 665%)
25.2M25.20 mi0.35 mi19418-1727342-1057342-10525056(Top 88%)10711(Top 88%)10711(Top 623%)
Finish26.22 mi1.02 mi19587-1697461-1197461-11922562(Top 79%)9442(Top 77%)9442(Top 550%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21stories
+97ft-345ft

Overall

15981

Females

5136

F40-44

5136

5K→10K

3.1 - 6.2 mi

Top 51%
×5stories
+79ft-138ft

Overall

14492

Females

4250

F40-44

4250

10K→15K

6.2 - 9.3 mi

Top 56%
×3stories
+67ft-78ft

Overall

15981

Females

5136

F40-44

5136

15K→20K

9.3 - 12.4 mi

Top 56%
×5stories
+106ft-86ft

Overall

15780

Females

5089

F40-44

5089

20K→Half

12.4 - 13.1 mi

Top 59%
×2stories
+19ft-37ft

Overall

16773

Females

5648

F40-44

5648

Half→25K

13.1 - 15.5 mi

Top 56%
×4stories
+66ft-88ft

Overall

15923

Females

5274

F40-44

5274

25K→30K

15.5 - 18.6 mi

Top 59%
×9stories
+181ft-148ft

Overall

16667

Females

5843

F40-44

5843

30K→20M

18.6 - 20.0 mi

Top 65%
×5stories
+64ft-50ft

Overall

18462

Females

6984

F40-44

6984

20M→21M

20.0 - 21.0 mi

Top 92%
×8stories
+106ft-24ft

Overall

25991

Females

11038

F40-44

11038

21M→35K

21.0 - 21.8 mi

Top 80%
×7stories
+17ft-86ft

Overall

22741

Females

9404

F40-44

9404

35K→23M

21.8 - 23.0 mi

Top 80%
×5stories
+23ft-63ft

Overall

22744

Females

9467

F40-44

9467

23M→24M

23.0 - 24.0 mi

Top 84%
×6stories
+12ft-82ft

Overall

23861

Females

10044

F40-44

10044

24M→40K

24.0 - 24.9 mi

Top 93%
×1story
+6ft-20ft

Overall

26555

Females

11420

F40-44

11420

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1story
+13ft-16ft

Overall

25056

Females

10711

F40-44

10711

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2stories
+22ft-21ft

Overall

22562

Females

9442

F40-44

9442

Passing Analysis

Category:
Athletes Passed
1465
Passed By
5523
Net Change
-4058
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15529
5K → 10K664106+558#15529#14971
10K → 15K115456-341#14971#15312
15K → 20K173288-115#15312#15427
20K → Half1996-77#15427#15504
Half → 25K155197-42#15504#15546
25K → 30K162403-241#15546#15787
30K → 20M69260-191#15787#15978
20M → 21M61272-1266#15978#17244
21M → 35K17348-331#17244#17575
35K → 23M29538-509#17575#18084
23M → 24M19475-456#18084#18540
24M → 40K11717-706#18540#19246
40K → 25.2M5177-172#19246#19418
25.2M → Finish21190-169#19418#19587
TOTALS14655523-4058
📊

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