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BOSTON MARATHON 2025

Rebecca Johnson

Bib: 8070•F

PA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 17%
Gender (Female)
#0 / 12228
Top 4%
Division (F18-39)
#0 / 5469
Top 7%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:44
Rank: #5236
Start → 5K
20:44 | 6:40/mi
10K· 6.21 mi
41:28
Rank: #5146 (+90)
5K → 10K
20:44 | 6:40/mi
15K· 9.32 mi
1:02:23
Rank: #5201 (-55)
10K → 15K
20:55 | 6:44/mi
20K· 12.43 mi
1:23:40
Rank: #5306 (-105)
15K → 20K
21:17 | 6:51/mi
Half· 13.11 mi
1:28:22
Rank: #5393 (-87)
20K → Half
4:42 | 6:53/mi
25K· 15.53 mi
1:45:08
Rank: #5445 (-52)
Half → 25K
16:46 | 6:55/mi
30K· 18.64 mi
2:07:12
Rank: #5362 (+83)
25K → 30K
22:04 | 7:06/mi
20M
2:17:00
Rank: #5370 (-8)
30K → 20M
9:48 | 7:13/mi
21M
2:24:32
Rank: #5293 (+77)
20M → 21M
7:32 | 7:32/mi
35K· 21.75 mi
2:29:46
Rank: #5288 (+5)
21M → 35K
5:14 | 7:00/mi
23M
2:38:49
Rank: #5229 (+59)
35K → 23M
9:03 | 7:14/mi
24M
2:45:52
Rank: #5184 (+45)
23M → 24M
7:03 | 7:03/mi
40K· 24.85 mi
2:51:51
Rank: #5104 (+80)
24M → 40K
5:59 | 7:00/mi
25.2M
2:54:28
Rank: #5060 (+44)
40K → 25.2M
2:37 | 7:35/mi
Finish· 26.22 mi
3:01:13
Rank: #4962 (+98)
25.2M → Finish
6:45 | 6:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:22
Pace6:44 /mi
2nd Half
Distance13.11 mi
Time1:32:51
Pace7:05 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:29:2820:446:4020:44
6:40
-
10K
6.21 mi10:50:1241:286:4020:44
6:40
0:00
15K
9.32 mi11:11:071:02:236:4220:55
6:44
+0:04
20K
12.43 mi11:32:241:23:406:4421:17
6:51
+0:07
Half
13.11 mi11:37:061:28:226:444:42
6:53
+0:02
25K
15.53 mi11:53:521:45:086:4616:46
6:55
+0:02
30K
18.64 mi12:15:562:07:126:4922:04
7:06
+0:11
20M
20.00 mi12:25:442:17:006:519:48
7:13
+0:07
21M
21.00 mi12:33:162:24:326:537:32
7:32
+0:19
35K
21.75 mi12:38:302:29:466:535:14
7:00
-0:32
23M
23.00 mi12:47:332:38:496:549:03
7:14
+0:14
24M
24.00 mi12:54:362:45:526:557:03
7:03
-0:11
40K
24.85 mi13:00:352:51:516:555:59
7:00
-0:03
25.2M
25.20 mi13:03:122:54:286:552:37
7:35
+0:35
Finish
26.22 mi13:09:573:01:136:556:45
6:37
-0:58

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

6:37 /mi

Average Pace

6:55 /mi

Slowest Pace

7:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:51:04

94% of race

Time at Steady Pace

10:09

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:55 /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 mi10:29:2820:446:4020:44
6:40
#5236
10K
6.21 mi10:50:1241:286:4020:44
6:40
#5146
15K
9.32 mi11:11:071:02:236:4220:55
6:44
#5201
20K
12.43 mi11:32:241:23:406:4421:17
6:51
#5306
Half
13.11 mi11:37:061:28:226:444:42
6:53
#5393
25K
15.53 mi11:53:521:45:086:4616:46
6:55
#5445
30K
18.64 mi12:15:562:07:126:4922:04
7:06
#5362
20M
20.00 mi12:25:442:17:006:519:48
7:13
#5370
21M
21.00 mi12:33:162:24:326:537:32
7:32
#5293
35K
21.75 mi12:38:302:29:466:535:14
7:00
#5288
23M
23.00 mi12:47:332:38:496:549:03
7:14
#5229
24M
24.00 mi12:54:362:45:526:557:03
7:03
#5184
40K
24.85 mi13:00:352:51:516:555:59
7:00
#5104
25.2M
25.20 mi13:03:122:54:286:552:37
7:35
#5060
Finish
26.22 mi13:09:573:01:136:556:45
6:37
#4962
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi52363513515409(Top 19%)421(Top 3%)421(Top 8%)
10K6.21 mi3.10 mi5146+90345+6345+65126(Top 18%)345(Top 3%)345(Top 6%)
15K9.32 mi3.11 mi5201-55357-12357-125409(Top 19%)421(Top 3%)421(Top 8%)
20K12.43 mi3.11 mi5306-105385-28385-285794(Top 20%)505(Top 4%)505(Top 9%)
Half13.11 mi0.68 mi5393-87400-15400-156863(Top 24%)721(Top 6%)721(Top 13%)
25K15.53 mi2.42 mi5445-52424-24424-245788(Top 20%)544(Top 4%)544(Top 10%)
30K18.64 mi3.11 mi5362+83430-6430-65337(Top 19%)514(Top 4%)514(Top 9%)
20M20.00 mi1.36 mi5370-8441-11441-115277(Top 19%)573(Top 5%)573(Top 10%)
21M21.00 mi1.00 mi5293+77437+4437+44800(Top 17%)554(Top 5%)554(Top 10%)
35K21.75 mi0.75 mi5288+5439-2439-25354(Top 19%)708(Top 6%)708(Top 13%)
23M23.00 mi1.25 mi5229+59445-6445-65063(Top 18%)684(Top 6%)684(Top 13%)
24M24.00 mi1.00 mi5184+45447-2447-24938(Top 17%)703(Top 6%)703(Top 13%)
40K24.85 mi0.85 mi5104+80444+3444+33935(Top 14%)485(Top 4%)485(Top 9%)
25.2M25.20 mi0.35 mi5060+44439+5439+53884(Top 14%)518(Top 4%)518(Top 9%)
Finish26.22 mi1.02 mi4962+98432+7432+73496(Top 12%)424(Top 3%)424(Top 8%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5409

Females

421

F18-39

421

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

5126

Females

345

F18-39

345

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5409

Females

421

F18-39

421

15K→20K

9.3 - 12.4 mi

Top 20%
×5stories
+106ft-86ft

Overall

5794

Females

505

F18-39

505

20K→Half

12.4 - 13.1 mi

Top 24%
×2stories
+19ft-37ft

Overall

6863

Females

721

F18-39

721

Half→25K

13.1 - 15.5 mi

Top 20%
×4stories
+66ft-88ft

Overall

5788

Females

544

F18-39

544

25K→30K

15.5 - 18.6 mi

Top 19%
×9stories
+181ft-148ft

Overall

5337

Females

514

F18-39

514

30K→20M

18.6 - 20.0 mi

Top 19%
×5stories
+64ft-50ft

Overall

5277

Females

573

F18-39

573

20M→21M

20.0 - 21.0 mi

Top 17%
×8stories
+106ft-24ft

Overall

4800

Females

554

F18-39

554

21M→35K

21.0 - 21.8 mi

Top 19%
×7stories
+17ft-86ft

Overall

5354

Females

708

F18-39

708

35K→23M

21.8 - 23.0 mi

Top 18%
×5stories
+23ft-63ft

Overall

5063

Females

684

F18-39

684

23M→24M

23.0 - 24.0 mi

Top 17%
×6stories
+12ft-82ft

Overall

4938

Females

703

F18-39

703

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

3935

Females

485

F18-39

485

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3884

Females

518

F18-39

518

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3496

Females

424

F18-39

424

Passing Analysis

Category:
Athletes Passed
1411
Passed By
1137
Net Change
+274
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5236
5K → 10K220130+90#5236#5146
10K → 15K114169-55#5146#5201
15K → 20K91196-105#5201#5306
20K → Half794-87#5306#5393
Half → 25K104156-52#5393#5445
25K → 30K203120+83#5445#5362
30K → 20M7886-8#5362#5370
20M → 21M11942+77#5370#5293
21M → 35K4641+5#5293#5288
35K → 23M10546+59#5288#5229
23M → 24M7631+45#5229#5184
24M → 40K9313+80#5184#5104
40K → 25.2M517+44#5104#5060
25.2M → Finish1046+98#5060#4962
TOTALS14111137+274
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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