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BOSTON MARATHON 2025

Grace Mckenna

Bib: 27731•F

MA

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

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
9:22/mi
29:05
↑ 97↓ 3451.5%
10K· 6.21 mi
9:15/mi
57:49
↑ 79↓ 1380.4%
15K· 9.32 mi
9:30/mi
1:27:19
↑ 67↓ 78
20K· 12.43 mi
9:49/mi
1:57:48
↑ 106↓ 860.1%
Half· 13.11 mi
9:07/mi
2:04:01
↑ 19↓ 370.5%
25K· 15.53 mi
9:54/mi
2:28:02
↑ 66↓ 880.2%
30K· 18.64 mi
10:15/mi
2:59:52
↑ 181↓ 1480.2%
20M
10:31/mi
3:14:10
↑ 64↓ 500.2%
21M
11:00/mi
3:25:10
↑ 106↓ 241.6%
35K· 21.75 mi
9:45/mi
3:32:28
↑ 17↓ 861.7%
23M
10:37/mi
3:45:45
↑ 23↓ 630.6%
24M
10:34/mi
3:56:19
↓ 821.3%
40K· 24.85 mi
11:07/mi
4:05:49
↓ 200.3%
25.2M
11:27/mi
4:09:46
↑ 13↓ 160.2%
Finish· 26.22 mi
9:16/mi
4:19:13
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:04:01
Pace9:28 /mi
2nd Half
Distance13.11 mi
Time2:15:12
Pace10:19 /mi
📊Positive Split: 9.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:2829:059:2229:05
9:22
-
10K
6.21 mi12:15:1257:499:1828:44
9:15
-0:07
15K
9.32 mi12:44:421:27:199:2229:30
9:30
+0:15
20K
12.43 mi13:15:111:57:489:2930:29
9:49
+0:19
Half
13.11 mi13:21:242:04:019:286:13
9:07
-0:42
25K
15.53 mi13:45:252:28:029:3224:01
9:54
+0:47
30K
18.64 mi14:17:152:59:529:3931:50
10:15
+0:21
20M
20.00 mi14:31:333:14:109:4214:18
10:31
+0:16
21M
21.00 mi14:42:333:25:109:4611:00
11:00
+0:29
35K
21.75 mi14:49:513:32:289:467:18
9:45
-1:15
23M
23.00 mi15:03:083:45:459:4913:17
10:37
+0:52
24M
24.00 mi15:13:423:56:199:5110:34
10:34
-0:03
40K
24.85 mi15:23:124:05:499:539:30
11:07
+0:33
25.2M
25.20 mi15:27:094:09:469:553:57
11:27
+0:20
Finish
26.22 mi15:36:364:19:139:549:27
9:16
-2:11

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

9:07 /mi

Average Pace

9:54 /mi

Slowest Pace

11:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:59

40% of race

Time at Steady Pace

1:33:38

36% of race

Time at Slower Pace

1:02:36

24% of race

Average Pace: 9:53 /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 mi11:46:2829:059:2229:05
9:22
#23786
10K
6.21 mi12:15:1257:499:1828:44
9:15
#23588
15K
9.32 mi12:44:421:27:199:2229:30
9:30
#23655
20K
12.43 mi13:15:111:57:489:2930:29
9:49
#23691
Half
13.11 mi13:21:242:04:019:286:13
9:07
#23631
25K
15.53 mi13:45:252:28:029:3224:01
9:54
#23504
30K
18.64 mi14:17:152:59:529:3931:50
10:15
#23247
20M
20.00 mi14:31:333:14:109:4214:18
10:31
#23175
21M
21.00 mi14:42:333:25:109:4611:00
11:00
#23074
35K
21.75 mi14:49:513:32:289:467:18
9:45
#22998
23M
23.00 mi15:03:083:45:459:4913:17
10:37
#22939
24M
24.00 mi15:13:423:56:199:5110:34
10:34
#22932
40K
24.85 mi15:23:124:05:499:539:30
11:07
#22958
25.2M
25.20 mi15:27:094:09:469:553:57
11:27
#22952
Finish
26.22 mi15:36:364:19:139:549:27
9:16
#22864
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi237869578957823730(Top 84%)9504(Top 78%)9504(Top 174%)
10K6.21 mi3.10 mi23588+1989478+1009478+10023366(Top 82%)9335(Top 76%)9335(Top 171%)
15K9.32 mi3.11 mi23655-679491-139491-1323730(Top 84%)9504(Top 78%)9504(Top 174%)
20K12.43 mi3.11 mi23691-369512-219512-2123797(Top 84%)9601(Top 79%)9601(Top 176%)
Half13.11 mi0.68 mi23631+609479+339479+3322311(Top 79%)8793(Top 72%)8793(Top 161%)
25K15.53 mi2.42 mi23504+1279419+609419+6023021(Top 81%)9202(Top 75%)9202(Top 168%)
30K18.64 mi3.11 mi23247+2579321+989321+9822317(Top 79%)8950(Top 73%)8950(Top 164%)
20M20.00 mi1.36 mi23175+729297+249297+2422509(Top 79%)9161(Top 75%)9161(Top 168%)
21M21.00 mi1.00 mi23074+1019263+349263+3421418(Top 75%)8668(Top 71%)8668(Top 158%)
35K21.75 mi0.75 mi22998+769240+239240+2321231(Top 75%)8639(Top 71%)8639(Top 158%)
23M23.00 mi1.25 mi22939+599232+89232+822310(Top 79%)9233(Top 76%)9233(Top 169%)
24M24.00 mi1.00 mi22932+79249-179249-1723002(Top 81%)9638(Top 79%)9638(Top 176%)
40K24.85 mi0.85 mi22958-269287-389287-3823396(Top 82%)9895(Top 81%)9895(Top 181%)
25.2M25.20 mi0.35 mi22952+69289-29289-221967(Top 77%)9139(Top 75%)9139(Top 167%)
Finish26.22 mi1.02 mi22864+889251+389251+3820303(Top 71%)8301(Top 68%)8301(Top 152%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 84%
×21story building
+97ft-345ft

Overall

23730

Females

9504

F18-39

9504

5K→10K

3.1 - 6.2 mi

Top 82%
×5story building
+79ft-138ft

Overall

23366

Females

9335

F18-39

9335

10K→15K

6.2 - 9.3 mi

Top 84%
×3story building
+67ft-78ft

Overall

23730

Females

9504

F18-39

9504

15K→20K

9.3 - 12.4 mi

Top 84%
×5story building
+106ft-86ft

Overall

23797

Females

9601

F18-39

9601

20K→Half

12.4 - 13.1 mi

Top 79%
×2story building
+19ft-37ft

Overall

22311

Females

8793

F18-39

8793

Half→25K

13.1 - 15.5 mi

Top 81%
×4story building
+66ft-88ft

Overall

23021

Females

9202

F18-39

9202

25K→30K

15.5 - 18.6 mi

Top 79%
×9story building
+181ft-148ft

Overall

22317

Females

8950

F18-39

8950

30K→20M

18.6 - 20.0 mi

Top 79%
×5story building
+64ft-50ft

Overall

22509

Females

9161

F18-39

9161

20M→21M

20.0 - 21.0 mi

Top 75%
×8story building
+106ft-24ft

Overall

21418

Females

8668

F18-39

8668

21M→35K

21.0 - 21.8 mi

Top 75%
×7story building
+17ft-86ft

Overall

21231

Females

8639

F18-39

8639

35K→23M

21.8 - 23.0 mi

Top 79%
×5story building
+23ft-63ft

Overall

22310

Females

9233

F18-39

9233

23M→24M

23.0 - 24.0 mi

Top 81%
×6story building
+12ft-82ft

Overall

23002

Females

9638

F18-39

9638

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

23396

Females

9895

F18-39

9895

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1story
+13ft-16ft

Overall

21967

Females

9139

F18-39

9139

25.2M→Finish

25.2 - 26.2 mi

Top 71%
×2story building
+22ft-21ft

Overall

20303

Females

8301

F18-39

8301

Passing Analysis

Category:
Athletes Passed
1811
Passed By
889
Net Change
+922
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23786
5K → 10K352154+198#23786#23588
10K → 15K147214-67#23588#23655
15K → 20K127163-36#23655#23691
20K → Half622+60#23691#23631
Half → 25K18861+127#23631#23504
25K → 30K30750+257#23504#23247
30K → 20M10735+72#23247#23175
20M → 21M12221+101#23175#23074
21M → 35K804+76#23074#22998
35K → 23M9536+59#22998#22939
23M → 24M5750+7#22939#22932
24M → 40K4369-26#22932#22958
40K → 25.2M2418+6#22958#22952
25.2M → Finish10012+88#22952#22864
TOTALS1811889+922
📊

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