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BOSTON MARATHON 2025

Rachael Blair

Bib: 15126•F

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 46%
Gender (Female)
#0 / 12228
Top 31%
Masters (Masters Women)
#0 / 6759
Top 16%
Division (F45-49)
#0 / 1813
Top 18%
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
7:49/mi
24:18
↑ 97↓ 3451.5%
10K· 6.21 mi
7:53/mi
48:46
↑ 79↓ 1380.4%
15K· 9.32 mi
7:53/mi
1:13:14
↑ 67↓ 78
20K· 12.43 mi
7:53/mi
1:37:44
↑ 106↓ 860.1%
Half· 13.11 mi
7:52/mi
1:43:06
↑ 19↓ 370.5%
25K· 15.53 mi
7:53/mi
2:02:13
↑ 66↓ 880.2%
30K· 18.64 mi
8:01/mi
2:27:06
↑ 181↓ 1480.2%
20M
8:01/mi
2:37:59
↑ 64↓ 500.2%
21M
8:27/mi
2:46:26
↑ 106↓ 241.6%
35K· 21.75 mi
7:40/mi
2:52:10
↑ 17↓ 861.7%
23M
8:04/mi
3:02:16
↑ 23↓ 630.6%
24M
8:02/mi
3:10:18
↓ 821.3%
40K· 24.85 mi
8:08/mi
3:17:15
↓ 200.3%
25.2M
9:34/mi
3:20:33
↑ 13↓ 160.2%
Finish· 26.22 mi
8:33/mi
3:29:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:06
Pace7:52 /mi
2nd Half
Distance13.11 mi
Time1:46:10
Pace8:06 /mi
📊Positive Split: 3.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:4924:187:4924:18
7:49
-
10K
6.21 mi11:20:1748:467:5124:28
7:53
+0:04
15K
9.32 mi11:44:451:13:147:5124:28
7:53
0:00
20K
12.43 mi12:09:151:37:447:5224:30
7:53
0:00
Half
13.11 mi12:14:371:43:067:525:22
7:52
-0:01
25K
15.53 mi12:33:442:02:137:5219:07
7:53
+0:01
30K
18.64 mi12:58:372:27:067:5324:53
8:01
+0:08
20M
20.00 mi13:09:302:37:597:5410:53
8:01
0:00
21M
21.00 mi13:17:572:46:267:568:27
8:27
+0:26
35K
21.75 mi13:23:412:52:107:555:44
7:40
-0:47
23M
23.00 mi13:33:473:02:167:5510:06
8:04
+0:24
24M
24.00 mi13:41:493:10:187:568:02
8:02
-0:02
40K
24.85 mi13:48:463:17:157:566:57
8:08
+0:06
25.2M
25.20 mi13:52:043:20:337:583:18
9:34
+1:26
Finish
26.22 mi14:00:473:29:167:598:43
8:33
-1:01

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

7:40 /mi

Average Pace

7:59 /mi

Slowest Pace

9:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

5:44

3% of race

Time at Steady Pace

3:03:04

87% of race

Time at Slower Pace

20:28

10% of race

Average Pace: 7:59 /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 mi10:55:4924:187:4924:18
7:49
#15011
10K
6.21 mi11:20:1748:467:5124:28
7:53
#15229
15K
9.32 mi11:44:451:13:147:5124:28
7:53
#15145
20K
12.43 mi12:09:151:37:447:5224:30
7:53
#14797
Half
13.11 mi12:14:371:43:067:525:22
7:52
#14778
25K
15.53 mi12:33:442:02:137:5219:07
7:53
#14449
30K
18.64 mi12:58:372:27:067:5324:53
8:01
#13806
20M
20.00 mi13:09:302:37:597:5410:53
8:01
#13514
21M
21.00 mi13:17:572:46:267:568:27
8:27
#13289
35K
21.75 mi13:23:412:52:107:555:44
7:40
#13150
23M
23.00 mi13:33:473:02:167:5510:06
8:04
#12964
24M
24.00 mi13:41:493:10:187:568:02
8:02
#12865
40K
24.85 mi13:48:463:17:157:566:57
8:08
#12793
25.2M
25.20 mi13:52:043:20:337:583:18
9:34
#12825
Finish
26.22 mi14:00:473:29:167:598:43
8:33
#12996
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi150114532453215051(Top 53%)4603(Top 38%)4603(Top 254%)
10K6.21 mi3.10 mi15229-2184678-1464678-14615490(Top 55%)4828(Top 39%)4828(Top 266%)
15K9.32 mi3.11 mi15145+844644+344644+3415051(Top 53%)4603(Top 38%)4603(Top 254%)
20K12.43 mi3.11 mi14797+3484470+1744470+17413974(Top 49%)4080(Top 33%)4080(Top 225%)
Half13.11 mi0.68 mi14778+194457+134457+1314814(Top 52%)4492(Top 37%)4492(Top 248%)
25K15.53 mi2.42 mi14449+3294303+1544303+15413003(Top 46%)3675(Top 30%)3675(Top 203%)
30K18.64 mi3.11 mi13806+6433999+3043999+30411462(Top 40%)3017(Top 25%)3017(Top 166%)
20M20.00 mi1.36 mi13514+2923858+1413858+14110542(Top 37%)2716(Top 22%)2716(Top 150%)
21M21.00 mi1.00 mi13289+2253768+903768+9010196(Top 36%)2711(Top 22%)2711(Top 150%)
35K21.75 mi0.75 mi13150+1393709+593709+599865(Top 35%)2557(Top 21%)2557(Top 141%)
23M23.00 mi1.25 mi12964+1863643+663643+6610552(Top 37%)3027(Top 25%)3027(Top 167%)
24M24.00 mi1.00 mi12865+993627+163627+1611516(Top 41%)3578(Top 29%)3578(Top 197%)
40K24.85 mi0.85 mi12793+723619+83619+811127(Top 39%)3472(Top 28%)3472(Top 192%)
25.2M25.20 mi0.35 mi12825-323647-283647-2814964(Top 53%)5511(Top 45%)5511(Top 304%)
Finish26.22 mi1.02 mi12996-1713755-1083755-10816573(Top 58%)6331(Top 52%)6331(Top 349%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21story building
+97ft-345ft

Overall

15051

Females

4603

F45-49

4603

5K→10K

3.1 - 6.2 mi

Top 55%
×5story building
+79ft-138ft

Overall

15490

Females

4828

F45-49

4828

10K→15K

6.2 - 9.3 mi

Top 53%
×3story building
+67ft-78ft

Overall

15051

Females

4603

F45-49

4603

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

13974

Females

4080

F45-49

4080

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

14814

Females

4492

F45-49

4492

Half→25K

13.1 - 15.5 mi

Top 46%
×4story building
+66ft-88ft

Overall

13003

Females

3675

F45-49

3675

25K→30K

15.5 - 18.6 mi

Top 40%
×9story building
+181ft-148ft

Overall

11462

Females

3017

F45-49

3017

30K→20M

18.6 - 20.0 mi

Top 37%
×5story building
+64ft-50ft

Overall

10542

Females

2716

F45-49

2716

20M→21M

20.0 - 21.0 mi

Top 36%
×8story building
+106ft-24ft

Overall

10196

Females

2711

F45-49

2711

21M→35K

21.0 - 21.8 mi

Top 35%
×7story building
+17ft-86ft

Overall

9865

Females

2557

F45-49

2557

35K→23M

21.8 - 23.0 mi

Top 37%
×5story building
+23ft-63ft

Overall

10552

Females

3027

F45-49

3027

23M→24M

23.0 - 24.0 mi

Top 41%
×6story building
+12ft-82ft

Overall

11516

Females

3578

F45-49

3578

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

11127

Females

3472

F45-49

3472

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14964

Females

5511

F45-49

5511

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

16573

Females

6331

F45-49

6331

Passing Analysis

Category:
Athletes Passed
3089
Passed By
1074
Net Change
+2015
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15011
5K → 10K205423-218#15011#15229
10K → 15K257173+84#15229#15145
15K → 20K39446+348#15145#14797
20K → Half4021+19#14797#14778
Half → 25K35526+329#14778#14449
25K → 30K65714+643#14449#13806
30K → 20M3008+292#13806#13514
20M → 21M23712+225#13514#13289
21M → 35K1434+139#13289#13150
35K → 23M20418+186#13150#12964
23M → 24M12829+99#12964#12865
24M → 40K11139+72#12865#12793
40K → 25.2M2658-32#12793#12825
25.2M → Finish32203-171#12825#12996
TOTALS30891074+2015
📊

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