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BOSTON MARATHON 2025

Marisa Harwood-Jones

Bib: 23761•F

MB

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:30
Rank: #20075
Start → 5K
8:32/mi
26:30 split
10K· 6.21 mi
53:41
Rank: #20612 (-537)
5K → 10K
8:45/mi
27:11 split
15K· 9.32 mi
1:20:46
Rank: #20563 (+49)
10K → 15K
8:43/mi
27:05 split
20K· 12.43 mi
1:48:15
Rank: #20474 (+89)
15K → 20K
8:51/mi
27:29 split
Half· 13.11 mi
1:54:14
Rank: #20488 (-14)
20K → Half
8:46/mi
5:59 split
25K· 15.53 mi
2:15:45
Rank: #20298 (+190)
Half → 25K
8:52/mi
21:31 split
30K· 18.64 mi
2:44:26
Rank: #19988 (+310)
25K → 30K
9:14/mi
28:41 split
20M
2:57:04
Rank: #19854 (+134)
30K → 20M
9:18/mi
12:38 split
21M
3:07:11
Rank: #19765 (+89)
20M → 21M
10:07/mi
10:07 split
35K· 21.75 mi
3:14:03
Rank: #19743 (+22)
21M → 35K
9:11/mi
6:52 split
23M
3:26:15
Rank: #19740 (+3)
35K → 23M
9:45/mi
12:12 split
24M
3:35:18
Rank: #19650 (+90)
23M → 24M
9:03/mi
9:03 split
40K· 24.85 mi
3:43:21
Rank: #19605 (+45)
24M → 40K
9:25/mi
8:03 split
25.2M
3:46:52
Rank: #19578 (+27)
40K → 25.2M
10:12/mi
3:31 split
Finish· 26.22 mi
3:55:52
Rank: #19529 (+49)
25.2M → Finish
8:50/mi
9:00 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:14
Pace8:43 /mi
2nd Half
Distance13.11 mi
Time2:01:38
Pace9:17 /mi
📊Positive Split: 6.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:2826:308:3226:30
8:32
-
10K
6.21 mi11:52:3953:418:3827:11
8:45
+0:13
15K
9.32 mi12:19:441:20:468:4027:05
8:43
-0:02
20K
12.43 mi12:47:131:48:158:4327:29
8:51
+0:08
Half
13.11 mi12:53:121:54:148:435:59
8:46
-0:05
25K
15.53 mi13:14:432:15:458:4421:31
8:52
+0:06
30K
18.64 mi13:43:242:44:268:4928:41
9:14
+0:22
20M
20.00 mi13:56:022:57:048:5112:38
9:18
+0:04
21M
21.00 mi14:06:093:07:118:5510:07
10:07
+0:49
35K
21.75 mi14:13:013:14:038:556:52
9:11
-0:56
23M
23.00 mi14:25:133:26:158:5812:12
9:45
+0:34
24M
24.00 mi14:34:163:35:188:589:03
9:03
-0:42
40K
24.85 mi14:42:193:43:218:598:03
9:25
+0:22
25.2M
25.20 mi14:45:503:46:529:003:31
10:12
+0:47
Finish
26.22 mi14:54:503:55:529:009:00
8:50
-1:22

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

8:32 /mi

Average Pace

9:00 /mi

Slowest Pace

10:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:21:59

86% of race

Time at Steady Pace

20:15

9% of race

Time at Slower Pace

13:38

6% 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 mi11:25:2826:308:3226:30
8:32
#20075
10K
6.21 mi11:52:3953:418:3827:11
8:45
#20612
15K
9.32 mi12:19:441:20:468:4027:05
8:43
#20563
20K
12.43 mi12:47:131:48:158:4327:29
8:51
#20474
Half
13.11 mi12:53:121:54:148:435:59
8:46
#20488
25K
15.53 mi13:14:432:15:458:4421:31
8:52
#20298
30K
18.64 mi13:43:242:44:268:4928:41
9:14
#19988
20M
20.00 mi13:56:022:57:048:5112:38
9:18
#19854
21M
21.00 mi14:06:093:07:118:5510:07
10:07
#19765
35K
21.75 mi14:13:013:14:038:556:52
9:11
#19743
23M
23.00 mi14:25:133:26:158:5812:12
9:45
#19740
24M
24.00 mi14:34:163:35:188:589:03
9:03
#19650
40K
24.85 mi14:42:193:43:218:598:03
9:25
#19605
25.2M
25.20 mi14:45:503:46:529:003:31
10:12
#19578
Finish
26.22 mi14:54:503:55:529:009:00
8:50
#19529
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi200757541754120590(Top 72%)7765(Top 64%)7765(Top 596%)
10K6.21 mi3.10 mi20612-5377837-2967837-29621161(Top 75%)8116(Top 66%)8116(Top 623%)
15K9.32 mi3.11 mi20563+497787+507787+5020590(Top 72%)7765(Top 64%)7765(Top 596%)
20K12.43 mi3.11 mi20474+897746+417746+4120196(Top 71%)7587(Top 62%)7587(Top 582%)
Half13.11 mi0.68 mi20488-147757-117757-1120784(Top 73%)7910(Top 65%)7910(Top 607%)
25K15.53 mi2.42 mi20298+1907658+997658+9919320(Top 68%)7157(Top 59%)7157(Top 549%)
30K18.64 mi3.11 mi19988+3107518+1407518+14018808(Top 66%)7017(Top 57%)7017(Top 539%)
20M20.00 mi1.36 mi19854+1347462+567462+5618301(Top 64%)6892(Top 56%)6892(Top 529%)
21M21.00 mi1.00 mi19765+897438+247438+2418746(Top 66%)7204(Top 59%)7204(Top 553%)
35K21.75 mi0.75 mi19743+227442-47442-419113(Top 67%)7508(Top 61%)7508(Top 576%)
23M23.00 mi1.25 mi19740+37478-367478-3619609(Top 69%)7837(Top 64%)7837(Top 601%)
24M24.00 mi1.00 mi19650+907453+257453+2517643(Top 62%)6848(Top 56%)6848(Top 526%)
40K24.85 mi0.85 mi19605+457441+127441+1218374(Top 65%)7323(Top 60%)7323(Top 562%)
25.2M25.20 mi0.35 mi19578+277442-17442-117934(Top 63%)7112(Top 58%)7112(Top 546%)
Finish26.22 mi1.02 mi19529+497426+167426+1618233(Top 64%)7207(Top 59%)7207(Top 553%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21story building
+97ft-345ft

Overall

20590

Females

7765

F50-54

7765

5K→10K

3.1 - 6.2 mi

Top 75%
×5story building
+79ft-138ft

Overall

21161

Females

8116

F50-54

8116

10K→15K

6.2 - 9.3 mi

Top 72%
×3story building
+67ft-78ft

Overall

20590

Females

7765

F50-54

7765

15K→20K

9.3 - 12.4 mi

Top 71%
×5story building
+106ft-86ft

Overall

20196

Females

7587

F50-54

7587

20K→Half

12.4 - 13.1 mi

Top 73%
×2story building
+19ft-37ft

Overall

20784

Females

7910

F50-54

7910

Half→25K

13.1 - 15.5 mi

Top 68%
×4story building
+66ft-88ft

Overall

19320

Females

7157

F50-54

7157

25K→30K

15.5 - 18.6 mi

Top 66%
×9story building
+181ft-148ft

Overall

18808

Females

7017

F50-54

7017

30K→20M

18.6 - 20.0 mi

Top 64%
×5story building
+64ft-50ft

Overall

18301

Females

6892

F50-54

6892

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

18746

Females

7204

F50-54

7204

21M→35K

21.0 - 21.8 mi

Top 67%
×7story building
+17ft-86ft

Overall

19113

Females

7508

F50-54

7508

35K→23M

21.8 - 23.0 mi

Top 69%
×5story building
+23ft-63ft

Overall

19609

Females

7837

F50-54

7837

23M→24M

23.0 - 24.0 mi

Top 62%
×6story building
+12ft-82ft

Overall

17643

Females

6848

F50-54

6848

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

18374

Females

7323

F50-54

7323

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

17934

Females

7112

F50-54

7112

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2story building
+22ft-21ft

Overall

18233

Females

7207

F50-54

7207

Passing Analysis

Category:
Athletes Passed
2013
Passed By
1467
Net Change
+546
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20075
5K → 10K107644-537#20075#20612
10K → 15K220171+49#20612#20563
15K → 20K225136+89#20563#20474
20K → Half2943-14#20474#20488
Half → 25K25060+190#20488#20298
25K → 30K39181+310#20298#19988
30K → 20M18248+134#19988#19854
20M → 21M13344+89#19854#19765
21M → 35K6038+22#19765#19743
35K → 23M9895+3#19743#19740
23M → 24M10919+90#19740#19650
24M → 40K8237+45#19650#19605
40K → 25.2M4821+27#19605#19578
25.2M → Finish7930+49#19578#19529
TOTALS20131467+546
📊

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