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BOSTON MARATHON 2025

Kiersten Brady

Bib: 27605•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
8:38/mi
26:50
↑ 97↓ 3451.5%
10K· 6.21 mi
8:21/mi
52:47
↑ 79↓ 1380.4%
15K· 9.32 mi
8:35/mi
1:19:28
↑ 67↓ 78
20K· 12.43 mi
8:42/mi
1:46:30
↑ 106↓ 860.1%
Half· 13.11 mi
8:27/mi
1:52:16
↑ 19↓ 370.5%
25K· 15.53 mi
9:13/mi
2:14:36
↑ 66↓ 880.2%
30K· 18.64 mi
9:35/mi
2:44:21
↑ 181↓ 1480.2%
20M
9:41/mi
2:57:30
↑ 64↓ 500.2%
21M
11:34/mi
3:09:04
↑ 106↓ 241.6%
35K· 21.75 mi
12:06/mi
3:18:07
↑ 17↓ 861.7%
23M
10:05/mi
3:30:45
↑ 23↓ 630.6%
24M
11:20/mi
3:42:05
↓ 821.3%
40K· 24.85 mi
10:35/mi
3:51:08
↓ 200.3%
25.2M
13:03/mi
3:55:38
↑ 13↓ 160.2%
Finish· 26.22 mi
9:16/mi
4:05:05
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:16
Pace8:34 /mi
2nd Half
Distance13.11 mi
Time2:12:49
Pace10:08 /mi
📊Positive Split: 18.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:42:4626:508:3826:50
8:38
-
10K
6.21 mi12:08:4352:478:3025:57
8:21
-0:17
15K
9.32 mi12:35:241:19:288:3226:41
8:35
+0:14
20K
12.43 mi13:02:261:46:308:3427:02
8:42
+0:07
Half
13.11 mi13:08:121:52:168:345:46
8:27
-0:15
25K
15.53 mi13:30:322:14:368:4022:20
9:13
+0:46
30K
18.64 mi14:00:172:44:218:4929:45
9:35
+0:22
20M
20.00 mi14:13:262:57:308:5213:09
9:41
+0:06
21M
21.00 mi14:25:003:09:049:0011:34
11:34
+1:53
35K
21.75 mi14:34:033:18:079:079:03
12:06
+0:32
23M
23.00 mi14:46:413:30:459:1012:38
10:05
-2:01
24M
24.00 mi14:58:013:42:059:1511:20
11:20
+1:15
40K
24.85 mi15:07:043:51:089:189:03
10:35
-0:45
25.2M
25.20 mi15:11:343:55:389:214:30
13:03
+2:28
Finish
26.22 mi15:21:014:05:059:219:27
9:16
-3:47

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

8:21 /mi

Average Pace

9:21 /mi

Slowest Pace

13:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:52:16

46% of race

Time at Steady Pace

1:27:19

36% of race

Time at Slower Pace

45:30

19% of race

Average Pace: 9:21 /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 mi11:42:4626:508:3826:50
8:38
#20696
10K
6.21 mi12:08:4352:478:3025:57
8:21
#19816
15K
9.32 mi12:35:241:19:288:3226:41
8:35
#19835
20K
12.43 mi13:02:261:46:308:3427:02
8:42
#19711
Half
13.11 mi13:08:121:52:168:345:46
8:27
#19669
25K
15.53 mi13:30:322:14:368:4022:20
9:13
#19866
30K
18.64 mi14:00:172:44:218:4929:45
9:35
#19968
20M
20.00 mi14:13:262:57:308:5213:09
9:41
#19956
21M
21.00 mi14:25:003:09:049:0011:34
11:34
#20222
35K
21.75 mi14:34:033:18:079:079:03
12:06
#20608
23M
23.00 mi14:46:413:30:459:1012:38
10:05
#20660
24M
24.00 mi14:58:013:42:059:1511:20
11:20
#20944
40K
24.85 mi15:07:043:51:089:189:03
10:35
#20998
25.2M
25.20 mi15:11:343:55:389:214:30
13:03
#21093
Finish
26.22 mi15:21:014:05:059:219:27
9:16
#21064
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi206967912791219879(Top 70%)7380(Top 60%)7380(Top 135%)
10K6.21 mi3.10 mi19816+8807368+5447368+54418906(Top 67%)6831(Top 56%)6831(Top 125%)
15K9.32 mi3.11 mi19835-197368736819879(Top 70%)7380(Top 60%)7380(Top 135%)
20K12.43 mi3.11 mi19711+1247309+597309+5919432(Top 68%)7162(Top 59%)7162(Top 131%)
Half13.11 mi0.68 mi19669+427291+187291+1818978(Top 67%)6901(Top 56%)6901(Top 126%)
25K15.53 mi2.42 mi19866-1977406-1157406-11520820(Top 73%)7991(Top 65%)7991(Top 146%)
30K18.64 mi3.11 mi19968-1027507-1017507-10120253(Top 71%)7796(Top 64%)7796(Top 143%)
20M20.00 mi1.36 mi19956+127522-157522-1519880(Top 70%)7718(Top 63%)7718(Top 141%)
21M21.00 mi1.00 mi20222-2667710-1887710-18822751(Top 80%)9367(Top 77%)9367(Top 171%)
35K21.75 mi0.75 mi20608-3867926-2167926-21626010(Top 92%)11101(Top 91%)11101(Top 203%)
23M23.00 mi1.25 mi20660-527975-497975-4920788(Top 73%)8445(Top 69%)8445(Top 154%)
24M24.00 mi1.00 mi20944-2848146-1718146-17124629(Top 87%)10447(Top 85%)10447(Top 191%)
40K24.85 mi0.85 mi20998-548205-598205-5922158(Top 78%)9280(Top 76%)9280(Top 170%)
25.2M25.20 mi0.35 mi21093-958259-548259-5425119(Top 88%)10741(Top 88%)10741(Top 196%)
Finish26.22 mi1.02 mi21064+298261-28261-220292(Top 71%)8290(Top 68%)8290(Top 152%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21story building
+97ft-345ft

Overall

19879

Females

7380

F18-39

7380

5K→10K

3.1 - 6.2 mi

Top 67%
×5story building
+79ft-138ft

Overall

18906

Females

6831

F18-39

6831

10K→15K

6.2 - 9.3 mi

Top 70%
×3story building
+67ft-78ft

Overall

19879

Females

7380

F18-39

7380

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

19432

Females

7162

F18-39

7162

20K→Half

12.4 - 13.1 mi

Top 67%
×2story building
+19ft-37ft

Overall

18978

Females

6901

F18-39

6901

Half→25K

13.1 - 15.5 mi

Top 73%
×4story building
+66ft-88ft

Overall

20820

Females

7991

F18-39

7991

25K→30K

15.5 - 18.6 mi

Top 71%
×9story building
+181ft-148ft

Overall

20253

Females

7796

F18-39

7796

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

19880

Females

7718

F18-39

7718

20M→21M

20.0 - 21.0 mi

Top 80%
×8story building
+106ft-24ft

Overall

22751

Females

9367

F18-39

9367

21M→35K

21.0 - 21.8 mi

Top 92%
×7story building
+17ft-86ft

Overall

26010

Females

11101

F18-39

11101

35K→23M

21.8 - 23.0 mi

Top 73%
×5story building
+23ft-63ft

Overall

20788

Females

8445

F18-39

8445

23M→24M

23.0 - 24.0 mi

Top 87%
×6story building
+12ft-82ft

Overall

24629

Females

10447

F18-39

10447

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

22158

Females

9280

F18-39

9280

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1story
+13ft-16ft

Overall

25119

Females

10741

F18-39

10741

25.2M→Finish

25.2 - 26.2 mi

Top 71%
×2story building
+22ft-21ft

Overall

20292

Females

8290

F18-39

8290

Passing Analysis

Category:
Athletes Passed
2055
Passed By
2423
Net Change
-368
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20696
5K → 10K93656+880#20696#19816
10K → 15K187206-19#19816#19835
15K → 20K252128+124#19835#19711
20K → Half5614+42#19711#19669
Half → 25K94291-197#19669#19866
25K → 30K190292-102#19866#19968
30K → 20M118106+12#19968#19956
20M → 21M30296-266#19956#20222
21M → 35K10396-386#20222#20608
35K → 23M70122-52#20608#20660
23M → 24M10294-284#20660#20944
24M → 40K3690-54#20944#20998
40K → 25.2M8103-95#20998#21093
25.2M → Finish5829+29#21093#21064
TOTALS20552423-368
📊

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