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BOSTON MARATHON 2025

Megan Mcdonald

VA

Bib: 18194 F

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:13/mi
25:31
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:01/mi
50:24
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:07/mi
1:15:37
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:13/mi
1:41:10
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:04/mi
1:46:40
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:45/mi
2:07:52
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:58/mi
2:35:45
↑ 181↓ 1480.2%
138 ft elev
20M
9:20/mi
2:48:26
↑ 64↓ 500.2%
148 ft elev
21M
10:17/mi
2:58:43
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
9:23/mi
3:05:44
↑ 17↓ 861.7%
156 ft elev
23M
10:07/mi
3:18:24
↑ 23↓ 630.6%
116 ft elev
24M
9:45/mi
3:28:09
↓ 821.3%
34 ft elev
40K· 24.85 mi
9:48/mi
3:36:32
↓ 200.3%
20 ft elev
25.2M
11:24/mi
3:40:28
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
9:11/mi
3:49:49
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:46:408:08 /mi⚡ faster
2nd Half
2:03:099:24 /mi+15.5%
Positive split — 15.5% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:5225:318:1325:31
8:13
-
10K
6.21 mi11:46:4550:248:0724:53
8:01
-0:12
15K
9.32 mi12:11:581:15:378:0725:13
8:07
+0:06
20K
12.43 mi12:37:311:41:108:0825:33
8:13
+0:06
Half
13.11 mi12:43:011:46:408:085:30
8:04
-0:09
25K
15.53 mi13:04:132:07:528:1421:12
8:45
+0:41
30K
18.64 mi13:32:062:35:458:2127:53
8:58
+0:13
20M
20.00 mi13:44:472:48:268:2512:41
9:20
+0:22
21M
21.00 mi13:55:042:58:438:3110:17
10:17
+0:57
35K
21.75 mi14:02:053:05:448:327:01
9:23
-0:54
23M
23.00 mi14:14:453:18:248:3812:40
10:07
+0:44
24M
24.00 mi14:24:303:28:098:409:45
9:45
-0:22
40K
24.85 mi14:32:533:36:328:438:23
9:48
+0:03
25.2M
25.20 mi14:36:493:40:288:453:56
11:24
+1:36
Finish
26.22 mi14:46:103:49:498:469:21
9:11
-2:13

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

8:01 /mi

Average Pace

8:46 /mi

Slowest Pace

11:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

1:46:40

46% of race

Time at Steady Pace

1:18:08

34% of race

Time at Slower Pace

45:01

20% of race

Average Pace: 8:46 /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 mi11:21:5225:318:1325:31
8:13
#18211
10K
6.21 mi11:46:4550:248:0724:53
8:01
#17342
15K
9.32 mi12:11:581:15:378:0725:13
8:07
#17182
20K
12.43 mi12:37:311:41:108:0825:33
8:13
#16978
Half
13.11 mi12:43:011:46:408:085:30
8:04
#16938
25K
15.53 mi13:04:132:07:528:1421:12
8:45
#17155
30K
18.64 mi13:32:062:35:458:2127:53
8:58
#17166
20M
20.00 mi13:44:472:48:268:2512:41
9:20
#17279
21M
21.00 mi13:55:042:58:438:3110:17
10:17
#17433
35K
21.75 mi14:02:053:05:448:327:01
9:23
#17546
23M
23.00 mi14:14:453:18:248:3812:40
10:07
#17833
24M
24.00 mi14:24:303:28:098:409:45
9:45
#17981
40K
24.85 mi14:32:533:36:328:438:23
9:48
#18089
25.2M
25.20 mi14:36:493:40:288:453:56
11:24
#18190
Finish
26.22 mi14:46:103:49:498:469:21
9:11
#18284
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi18211646964691687256575657
10K6.21 mi3.10 mi17342+8695937+5325937+5321656654625462
15K9.32 mi3.11 mi17182+1605819+1185819+1181687256575657
20K12.43 mi3.11 mi16978+2045726+935726+931647254765476
Half13.11 mi0.68 mi16938+405705+215705+211645754625462
25K15.53 mi2.42 mi17155-2175859-1545859-1541864767806780
30K18.64 mi3.11 mi17166-115916-575916-571756563456345
20M20.00 mi1.36 mi17279-1136015-996015-991845669786978
21M21.00 mi1.00 mi17433-1546133-1186133-1181931174987498
35K21.75 mi0.75 mi17546-1136213-806213-801988079117911
23M23.00 mi1.25 mi17833-2876402-1896402-1892087484898489
24M24.00 mi1.00 mi17981-1486511-1096511-1092057483758375
40K24.85 mi0.85 mi18089-1086594-836594-831983480588058
25.2M25.20 mi0.35 mi18190-1016664-706664-702181590539053
Finish26.22 mi1.02 mi18284-946736-726736-721984980598059

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21story building
+97ft-345ft

Overall

16872

Females

5657

F18-39

5657

5K→10K

3.1 - 6.2 mi

Top 58%
×5story building
+79ft-138ft

Overall

16566

Females

5462

F18-39

5462

10K→15K

6.2 - 9.3 mi

Top 59%
×3story building
+67ft-78ft

Overall

16872

Females

5657

F18-39

5657

15K→20K

9.3 - 12.4 mi

Top 58%
×5story building
+106ft-86ft

Overall

16472

Females

5476

F18-39

5476

20K→Half

12.4 - 13.1 mi

Top 58%
×2story building
+19ft-37ft

Overall

16457

Females

5462

F18-39

5462

Half→25K

13.1 - 15.5 mi

Top 66%
×4story building
+66ft-88ft

Overall

18647

Females

6780

F18-39

6780

25K→30K

15.5 - 18.6 mi

Top 62%
×9story building
+181ft-148ft

Overall

17565

Females

6345

F18-39

6345

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

18456

Females

6978

F18-39

6978

20M→21M

20.0 - 21.0 mi

Top 68%
×8story building
+106ft-24ft

Overall

19311

Females

7498

F18-39

7498

21M→35K

21.0 - 21.8 mi

Top 70%
×7story building
+17ft-86ft

Overall

19880

Females

7911

F18-39

7911

35K→23M

21.8 - 23.0 mi

Top 73%
×5story building
+23ft-63ft

Overall

20874

Females

8489

F18-39

8489

23M→24M

23.0 - 24.0 mi

Top 72%
×6story building
+12ft-82ft

Overall

20574

Females

8375

F18-39

8375

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

19834

Females

8058

F18-39

8058

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1story
+13ft-16ft

Overall

21815

Females

9053

F18-39

9053

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2story building
+22ft-21ft

Overall

19849

Females

8059

F18-39

8059

Passing Analysis

Category:
Athletes Passed
2224
Passed By
2297
Net Change
-73
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18211
5K → 10K91849+869#18211#17342
10K → 15K295135+160#17342#17182
15K → 20K29288+204#17182#16978
20K → Half5414+40#16978#16938
Half → 25K100317-217#16938#17155
25K → 30K225236-11#17155#17166
30K → 20M74187-113#17166#17279
20M → 21M60214-154#17279#17433
21M → 35K43156-113#17433#17546
35K → 23M45332-287#17546#17833
23M → 24M41189-148#17833#17981
24M → 40K38146-108#17981#18089
40K → 25.2M6107-101#18089#18190
25.2M → Finish33127-94#18190#18284
TOTALS22242297-73

Passing Charts

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