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BOSTON MARATHON 2025

Megan Mcgrath

Bib: 19350•F

CO

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 50%
Gender (Female)
#0 / 12228
Top 36%
Division (F18-39)
#0 / 5469
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
7:47/mi
24:12
↑ 97↓ 3451.5%
10K· 6.21 mi
7:33/mi
47:39
↑ 79↓ 1380.4%
15K· 9.32 mi
7:38/mi
1:11:21
↑ 67↓ 78
20K· 12.43 mi
7:41/mi
1:35:13
↑ 106↓ 860.1%
Half· 13.11 mi
7:30/mi
1:40:20
↑ 19↓ 370.5%
25K· 15.53 mi
8:04/mi
1:59:54
↑ 66↓ 880.2%
30K· 18.64 mi
8:17/mi
2:25:37
↑ 181↓ 1480.2%
20M
8:43/mi
2:37:28
↑ 64↓ 500.2%
21M
9:05/mi
2:46:33
↑ 106↓ 241.6%
35K· 21.75 mi
8:29/mi
2:52:54
↑ 17↓ 861.7%
23M
8:54/mi
3:04:03
↑ 23↓ 630.6%
24M
8:49/mi
3:12:52
↓ 821.3%
40K· 24.85 mi
9:12/mi
3:20:44
↓ 200.3%
25.2M
10:15/mi
3:24:16
↑ 13↓ 160.2%
Finish· 26.22 mi
9:05/mi
3:33:31
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:20
Pace7:39 /mi
2nd Half
Distance13.11 mi
Time1:53:11
Pace8:38 /mi
📊Positive Split: 12.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:3424:127:4724:12
7:47
-
10K
6.21 mi11:40:0147:397:4023:27
7:33
-0:14
15K
9.32 mi12:03:431:11:217:3923:42
7:38
+0:05
20K
12.43 mi12:27:351:35:137:4023:52
7:41
+0:03
Half
13.11 mi12:32:421:40:207:395:07
7:30
-0:11
25K
15.53 mi12:52:161:59:547:4319:34
8:04
+0:34
30K
18.64 mi13:17:592:25:377:4925:43
8:17
+0:13
20M
20.00 mi13:29:502:37:287:5211:51
8:43
+0:26
21M
21.00 mi13:38:552:46:337:569:05
9:05
+0:22
35K
21.75 mi13:45:162:52:547:576:21
8:29
-0:36
23M
23.00 mi13:56:253:04:038:0011:09
8:54
+0:25
24M
24.00 mi14:05:143:12:528:028:49
8:49
-0:05
40K
24.85 mi14:13:063:20:448:057:52
9:12
+0:23
25.2M
25.20 mi14:16:383:24:168:063:32
10:15
+1:03
Finish
26.22 mi14:25:533:33:318:099:15
9:05
-1:10

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

7:30 /mi

Average Pace

8:09 /mi

Slowest Pace

10:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59:54

56% of race

Time at Steady Pace

52:44

25% of race

Time at Slower Pace

40:53

19% of race

Average Pace: 8:09 /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 mi11:16:3424:127:4724:12
7:47
#14727
10K
6.21 mi11:40:0147:397:4023:27
7:33
#13670
15K
9.32 mi12:03:431:11:217:3923:42
7:38
#13367
20K
12.43 mi12:27:351:35:137:4023:52
7:41
#13029
Half
13.11 mi12:32:421:40:207:395:07
7:30
#12939
25K
15.53 mi12:52:161:59:547:4319:34
8:04
#13180
30K
18.64 mi13:17:592:25:377:4925:43
8:17
#13190
20M
20.00 mi13:29:502:37:287:5211:51
8:43
#13326
21M
21.00 mi13:38:552:46:337:569:05
9:05
#13326
35K
21.75 mi13:45:162:52:547:576:21
8:29
#13414
23M
23.00 mi13:56:253:04:038:0011:09
8:54
#13537
24M
24.00 mi14:05:143:12:528:028:49
8:49
#13689
40K
24.85 mi14:13:063:20:448:057:52
9:12
#13858
25.2M
25.20 mi14:16:383:24:168:063:32
10:15
#13932
Finish
26.22 mi14:25:533:33:318:099:15
9:05
#14174
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi147274364436412887(Top 45%)3384(Top 28%)3384(Top 62%)
10K6.21 mi3.10 mi13670+10573746+6183746+61812563(Top 44%)3130(Top 26%)3130(Top 57%)
15K9.32 mi3.11 mi13367+3033615+1313615+13112887(Top 45%)3384(Top 28%)3384(Top 62%)
20K12.43 mi3.11 mi13029+3383465+1503465+15012255(Top 43%)3150(Top 26%)3150(Top 58%)
Half13.11 mi0.68 mi12939+903416+493416+4911811(Top 42%)2850(Top 23%)2850(Top 52%)
25K15.53 mi2.42 mi13180-2413581-1653581-16514443(Top 51%)4452(Top 36%)4452(Top 81%)
30K18.64 mi3.11 mi13190-103663-823663-8213353(Top 47%)4031(Top 33%)4031(Top 74%)
20M20.00 mi1.36 mi13326-1363759-963759-9615197(Top 54%)5147(Top 42%)5147(Top 94%)
21M21.00 mi1.00 mi133263789-303789-3014021(Top 49%)4643(Top 38%)4643(Top 85%)
35K21.75 mi0.75 mi13414-883868-793868-7915402(Top 54%)5458(Top 45%)5458(Top 100%)
23M23.00 mi1.25 mi13537-1233977-1093977-10915709(Top 55%)5718(Top 47%)5718(Top 105%)
24M24.00 mi1.00 mi13689-1524085-1084085-10816419(Top 58%)6155(Top 50%)6155(Top 113%)
40K24.85 mi0.85 mi13858-1694219-1344219-13417355(Top 61%)6773(Top 55%)6773(Top 124%)
25.2M25.20 mi0.35 mi13932-744256-374256-3718087(Top 64%)7162(Top 59%)7162(Top 131%)
Finish26.22 mi1.02 mi14174-2424406-1504406-15019417(Top 68%)7817(Top 64%)7817(Top 143%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21story building
+97ft-345ft

Overall

12887

Females

3384

F18-39

3384

5K→10K

3.1 - 6.2 mi

Top 44%
×5story building
+79ft-138ft

Overall

12563

Females

3130

F18-39

3130

10K→15K

6.2 - 9.3 mi

Top 45%
×3story building
+67ft-78ft

Overall

12887

Females

3384

F18-39

3384

15K→20K

9.3 - 12.4 mi

Top 43%
×5story building
+106ft-86ft

Overall

12255

Females

3150

F18-39

3150

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

11811

Females

2850

F18-39

2850

Half→25K

13.1 - 15.5 mi

Top 51%
×4story building
+66ft-88ft

Overall

14443

Females

4452

F18-39

4452

25K→30K

15.5 - 18.6 mi

Top 47%
×9story building
+181ft-148ft

Overall

13353

Females

4031

F18-39

4031

30K→20M

18.6 - 20.0 mi

Top 54%
×5story building
+64ft-50ft

Overall

15197

Females

5147

F18-39

5147

20M→21M

20.0 - 21.0 mi

Top 49%
×8story building
+106ft-24ft

Overall

14021

Females

4643

F18-39

4643

21M→35K

21.0 - 21.8 mi

Top 54%
×7story building
+17ft-86ft

Overall

15402

Females

5458

F18-39

5458

35K→23M

21.8 - 23.0 mi

Top 55%
×5story building
+23ft-63ft

Overall

15709

Females

5718

F18-39

5718

23M→24M

23.0 - 24.0 mi

Top 58%
×6story building
+12ft-82ft

Overall

16419

Females

6155

F18-39

6155

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

17355

Females

6773

F18-39

6773

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

18087

Females

7162

F18-39

7162

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2story building
+22ft-21ft

Overall

19417

Females

7817

F18-39

7817

Passing Analysis

Category:
Athletes Passed
2708
Passed By
2155
Net Change
+553
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14727
5K → 10K108831+1057#14727#13670
10K → 15K37269+303#13670#13367
15K → 20K38547+338#13367#13029
20K → Half955+90#13029#12939
Half → 25K100341-241#12939#13180
25K → 30K251261-10#13180#13190
30K → 20M72208-136#13190#13326
20M → 21M1051050#13326#13326
21M → 35K38126-88#13326#13414
35K → 23M71194-123#13414#13537
23M → 24M47199-152#13537#13689
24M → 40K44213-169#13689#13858
40K → 25.2M1488-74#13858#13932
25.2M → Finish26268-242#13932#14174
TOTALS27082155+553
📊

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