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BOSTON MARATHON 2025

Margaret Griffing

Bib: 14183•F

AR

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 34%
Gender (Female)
#0 / 12228
Top 17%
Masters (Masters Women)
#0 / 6759
Top 6%
Division (F40-44)
#0 / 1718
Top 14%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:01
Rank: #11418
Start → 5K
23:01 | 7:25/mi
10K· 6.21 mi
46:03
Rank: #11332 (+86)
5K → 10K
23:02 | 7:25/mi
15K· 9.32 mi
1:09:01
Rank: #11115 (+217)
10K → 15K
22:58 | 7:24/mi
20K· 12.43 mi
1:32:09
Rank: #10885 (+230)
15K → 20K
23:08 | 7:27/mi
Half· 13.11 mi
1:37:12
Rank: #10875 (+10)
20K → Half
5:03 | 7:24/mi
25K· 15.53 mi
1:55:27
Rank: #10710 (+165)
Half → 25K
18:15 | 7:32/mi
30K· 18.64 mi
2:19:34
Rank: #10469 (+241)
25K → 30K
24:07 | 7:46/mi
20M
2:30:12
Rank: #10338 (+131)
30K → 20M
10:38 | 7:49/mi
21M
2:38:23
Rank: #10178 (+160)
20M → 21M
8:11 | 8:11/mi
35K· 21.75 mi
2:43:58
Rank: #10081 (+97)
21M → 35K
5:35 | 7:28/mi
23M
2:53:39
Rank: #9937 (+144)
35K → 23M
9:41 | 7:44/mi
24M
3:01:12
Rank: #9807 (+130)
23M → 24M
7:33 | 7:33/mi
40K· 24.85 mi
3:07:42
Rank: #9678 (+129)
24M → 40K
6:30 | 7:36/mi
25.2M
3:10:36
Rank: #9632 (+46)
40K → 25.2M
2:54 | 8:25/mi
Finish· 26.22 mi
3:18:19
Rank: #9618 (+14)
25.2M → Finish
7:43 | 7:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:12
Pace7:25 /mi
2nd Half
Distance13.11 mi
Time1:41:07
Pace7:43 /mi
📊Positive Split: 4.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:2223:017:2523:01
7:25
-
10K
6.21 mi11:16:2446:037:2523:02
7:25
0:00
15K
9.32 mi11:39:221:09:017:2422:58
7:24
-0:01
20K
12.43 mi12:02:301:32:097:2523:08
7:27
+0:03
Half
13.11 mi12:07:331:37:127:255:03
7:24
-0:03
25K
15.53 mi12:25:481:55:277:2618:15
7:32
+0:08
30K
18.64 mi12:49:552:19:347:2924:07
7:46
+0:14
20M
20.00 mi13:00:332:30:127:3110:38
7:49
+0:03
21M
21.00 mi13:08:442:38:237:338:11
8:11
+0:22
35K
21.75 mi13:14:192:43:587:325:35
7:28
-0:43
23M
23.00 mi13:24:002:53:397:339:41
7:44
+0:16
24M
24.00 mi13:31:333:01:127:337:33
7:33
-0:11
40K
24.85 mi13:38:033:07:427:336:30
7:36
+0:03
25.2M
25.20 mi13:40:573:10:367:342:54
8:25
+0:49
Finish
26.22 mi13:48:403:18:197:347:43
7:34
-0:51

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

7:24 /mi

Average Pace

7:34 /mi

Slowest Pace

8:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:07:14

94% of race

Time at Steady Pace

11:05

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:34 /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 mi10:53:2223:017:2523:01
7:25
#11418
10K
6.21 mi11:16:2446:037:2523:02
7:25
#11332
15K
9.32 mi11:39:221:09:017:2422:58
7:24
#11115
20K
12.43 mi12:02:301:32:097:2523:08
7:27
#10885
Half
13.11 mi12:07:331:37:127:255:03
7:24
#10875
25K
15.53 mi12:25:481:55:277:2618:15
7:32
#10710
30K
18.64 mi12:49:552:19:347:2924:07
7:46
#10469
20M
20.00 mi13:00:332:30:127:3110:38
7:49
#10338
21M
21.00 mi13:08:442:38:237:338:11
8:11
#10178
35K
21.75 mi13:14:192:43:587:325:35
7:28
#10081
23M
23.00 mi13:24:002:53:397:339:41
7:44
#9937
24M
24.00 mi13:31:333:01:127:337:33
7:33
#9807
40K
24.85 mi13:38:033:07:427:336:30
7:36
#9678
25.2M
25.20 mi13:40:573:10:367:342:54
8:25
#9632
Finish
26.22 mi13:48:403:18:197:347:43
7:34
#9618
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi114182487248710817(Top 38%)2280(Top 19%)2280(Top 133%)
10K6.21 mi3.10 mi11332+862465+222465+2211319(Top 40%)2470(Top 20%)2470(Top 144%)
15K9.32 mi3.11 mi11115+2172378+872378+8710817(Top 38%)2280(Top 19%)2280(Top 133%)
20K12.43 mi3.11 mi10885+2302279+992279+9910316(Top 36%)2108(Top 17%)2108(Top 123%)
Half13.11 mi0.68 mi10875+102280-12280-110940(Top 39%)2382(Top 19%)2382(Top 139%)
25K15.53 mi2.42 mi10710+1652238+422238+4210200(Top 36%)2186(Top 18%)2186(Top 127%)
30K18.64 mi3.11 mi10469+2412188+502188+509645(Top 34%)2119(Top 17%)2119(Top 123%)
20M20.00 mi1.36 mi10338+1312168+202168+209210(Top 32%)2080(Top 17%)2080(Top 121%)
21M21.00 mi1.00 mi10178+1602129+392129+398507(Top 30%)1942(Top 16%)1942(Top 113%)
35K21.75 mi0.75 mi10081+972108+212108+218410(Top 30%)1851(Top 15%)1851(Top 108%)
23M23.00 mi1.25 mi9937+1442081+272081+278132(Top 29%)1878(Top 15%)1878(Top 109%)
24M24.00 mi1.00 mi9807+1302047+342047+348079(Top 28%)1900(Top 16%)1900(Top 111%)
40K24.85 mi0.85 mi9678+1292016+312016+317473(Top 26%)1751(Top 14%)1751(Top 102%)
25.2M25.20 mi0.35 mi9632+462018-22018-28323(Top 29%)2203(Top 18%)2203(Top 128%)
Finish26.22 mi1.02 mi9618+142054-362054-369759(Top 34%)2877(Top 24%)2877(Top 167%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21stories
+97ft-345ft

Overall

10817

Females

2280

F40-44

2280

5K→10K

3.1 - 6.2 mi

Top 40%
×5stories
+79ft-138ft

Overall

11319

Females

2470

F40-44

2470

10K→15K

6.2 - 9.3 mi

Top 38%
×3stories
+67ft-78ft

Overall

10817

Females

2280

F40-44

2280

15K→20K

9.3 - 12.4 mi

Top 36%
×5stories
+106ft-86ft

Overall

10316

Females

2108

F40-44

2108

20K→Half

12.4 - 13.1 mi

Top 39%
×2stories
+19ft-37ft

Overall

10940

Females

2382

F40-44

2382

Half→25K

13.1 - 15.5 mi

Top 36%
×4stories
+66ft-88ft

Overall

10200

Females

2186

F40-44

2186

25K→30K

15.5 - 18.6 mi

Top 34%
×9stories
+181ft-148ft

Overall

9645

Females

2119

F40-44

2119

30K→20M

18.6 - 20.0 mi

Top 32%
×5stories
+64ft-50ft

Overall

9210

Females

2080

F40-44

2080

20M→21M

20.0 - 21.0 mi

Top 30%
×8stories
+106ft-24ft

Overall

8507

Females

1942

F40-44

1942

21M→35K

21.0 - 21.8 mi

Top 30%
×7stories
+17ft-86ft

Overall

8410

Females

1851

F40-44

1851

35K→23M

21.8 - 23.0 mi

Top 29%
×5stories
+23ft-63ft

Overall

8132

Females

1878

F40-44

1878

23M→24M

23.0 - 24.0 mi

Top 28%
×6stories
+12ft-82ft

Overall

8079

Females

1900

F40-44

1900

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7473

Females

1751

F40-44

1751

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

8323

Females

2203

F40-44

2203

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2stories
+22ft-21ft

Overall

9759

Females

2877

F40-44

2877

Passing Analysis

Category:
Athletes Passed
2611*
Passed By
811
Net Change
+1800
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11418
5K → 10K291205+86#11418#11332
10K → 15K30588+217#11332#11115
15K → 20K29767+230#11115#10885
20K → Half3929+10#10885#10875
Half → 25K23873+165#10875#10710
25K → 30K345104+241#10710#10469
30K → 20M19059+131#10469#10338
20M → 21M18626+160#10338#10178
21M → 35K11417+97#10178#10081
35K → 23M177*33+144#10081#9937
23M → 24M14717+130#9937#9807
24M → 40K14415+129#9807#9678
40K → 25.2M5812+46#9678#9632
25.2M → Finish8066+14#9632#9618
TOTALS2611*811+1800

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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