Boston Marathon logo
BOSTON MARATHON 2025

Susan Johnson

Bib: 23792•F

TN

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:25
Rank: #24157
Start → 5K
29:25 | 9:28/mi
10K· 6.21 mi
59:22
Rank: #24336 (-179)
5K → 10K
29:57 | 9:38/mi
15K· 9.32 mi
1:28:35
Rank: #24048 (+288)
10K → 15K
29:13 | 9:24/mi
20K· 12.43 mi
1:57:58
Rank: #23731 (+317)
15K → 20K
29:23 | 9:27/mi
Half· 13.11 mi
2:04:09
Rank: #23661 (+70)
20K → Half
6:11 | 9:04/mi
25K· 15.53 mi
2:25:39
Rank: #23039 (+622)
Half → 25K
21:30 | 8:52/mi
30K· 18.64 mi
2:53:50
Rank: #22255 (+784)
25K → 30K
28:11 | 9:04/mi
20M
3:06:17
Rank: #21933 (+322)
30K → 20M
12:27 | 9:10/mi
21M
3:15:27
Rank: #21566 (+367)
20M → 21M
9:10 | 9:10/mi
35K· 21.75 mi
3:21:57
Rank: #21398 (+168)
21M → 35K
6:30 | 8:41/mi
23M
3:32:56
Rank: #21057 (+341)
35K → 23M
10:59 | 8:46/mi
24M
3:41:24
Rank: #20839 (+218)
23M → 24M
8:28 | 8:28/mi
40K· 24.85 mi
3:48:22
Rank: #20572 (+267)
24M → 40K
6:58 | 8:09/mi
25.2M
3:51:27
Rank: #20477 (+95)
40K → 25.2M
3:05 | 8:56/mi
Finish· 26.22 mi
3:59:14
Rank: #20204 (+273)
25.2M → Finish
7:47 | 7:38/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via Half
Distance13.11 mi
Time2:04:09
Pace9:28 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:55:05
Pace8:47 /mi
📊Negative Split: 7.3% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:28:5529:259:2829:25
9:28
-
10K
6.21 mi11:58:5259:229:3329:57
9:38
+0:10
15K
9.32 mi12:28:051:28:359:3029:13
9:24
-0:14
20K
12.43 mi12:57:281:57:589:3029:23
9:27
+0:03
Half
13.11 mi13:03:392:04:099:286:11
9:04
-0:23
25K
15.53 mi13:25:092:25:399:2321:30
8:52
-0:12
30K
18.64 mi13:53:202:53:509:2028:11
9:04
+0:12
20M
20.00 mi14:05:473:06:179:1912:27
9:10
+0:06
21M
21.00 mi14:14:573:15:279:189:10
9:10
0:00
35K
21.75 mi14:21:273:21:579:176:30
8:41
-0:29
23M
23.00 mi14:32:263:32:569:1510:59
8:46
+0:05
24M
24.00 mi14:40:543:41:249:148:28
8:28
-0:18
40K
24.85 mi14:47:523:48:229:116:58
8:09
-0:19
25.2M
25.20 mi14:50:573:51:279:113:05
8:56
+0:47
Finish
26.22 mi14:58:443:59:149:087:47
7:38
-1:18

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

7:38 /mi

Average Pace

9:08 /mi

Slowest Pace

9:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

40:42

17% of race

Time at Steady Pace

1:20:34

34% of race

Time at Slower Pace

1:57:58

49% of race

Average Pace: 9:07 /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 mi11:28:5529:259:2829:25
9:28
#24157
10K
6.21 mi11:58:5259:229:3329:57
9:38
#24336
15K
9.32 mi12:28:051:28:359:3029:13
9:24
#24048
20K
12.43 mi12:57:281:57:589:3029:23
9:27
#23731
Half
13.11 mi13:03:392:04:099:286:11
9:04
#23661
25K
15.53 mi13:25:092:25:399:2321:30
8:52
#23039
30K
18.64 mi13:53:202:53:509:2028:11
9:04
#22255
20M
20.00 mi14:05:473:06:179:1912:27
9:10
#21933
21M
21.00 mi14:14:573:15:279:189:10
9:10
#21566
35K
21.75 mi14:21:273:21:579:176:30
8:41
#21398
23M
23.00 mi14:32:263:32:569:1510:59
8:46
#21057
24M
24.00 mi14:40:543:41:249:148:28
8:28
#20839
40K
24.85 mi14:47:523:48:229:116:58
8:09
#20572
25.2M
25.20 mi14:50:573:51:279:113:05
8:56
#20477
Finish
26.22 mi14:58:443:59:149:087:47
7:38
#20204
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi241579771977123486(Top 83%)9367(Top 77%)9367(Top 719%)
10K6.21 mi3.10 mi24336-1799863-929863-9224460(Top 86%)9940(Top 81%)9940(Top 763%)
15K9.32 mi3.11 mi24048+2889702+1619702+16123486(Top 83%)9367(Top 77%)9367(Top 719%)
20K12.43 mi3.11 mi23731+3179537+1659537+16522764(Top 80%)9012(Top 74%)9012(Top 692%)
Half13.11 mi0.68 mi23661+709498+399498+3922085(Top 78%)8642(Top 71%)8642(Top 663%)
25K15.53 mi2.42 mi23039+6229163+3359163+33519286(Top 68%)7138(Top 58%)7138(Top 548%)
30K18.64 mi3.11 mi22255+7848768+3958768+39518051(Top 64%)6606(Top 54%)6606(Top 507%)
20M20.00 mi1.36 mi21933+3228596+1728596+17217626(Top 62%)6490(Top 53%)6490(Top 498%)
21M21.00 mi1.00 mi21566+3678425+1718425+17114484(Top 51%)4896(Top 40%)4896(Top 376%)
35K21.75 mi0.75 mi21398+1688349+768349+7616685(Top 59%)6181(Top 51%)6181(Top 474%)
23M23.00 mi1.25 mi21057+3418193+1568193+15614998(Top 53%)5344(Top 44%)5344(Top 410%)
24M24.00 mi1.00 mi20839+2188090+1038090+10314349(Top 51%)5018(Top 41%)5018(Top 385%)
40K24.85 mi0.85 mi20572+2677962+1287962+12811287(Top 40%)3571(Top 29%)3571(Top 274%)
25.2M25.20 mi0.35 mi20477+957917+457917+4511592(Top 41%)3829(Top 31%)3829(Top 294%)
Finish26.22 mi1.02 mi20204+2737783+1347783+13410276(Top 36%)3136(Top 26%)3136(Top 241%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21stories
+97ft-345ft

Overall

23486

Females

9367

F50-54

9367

5K→10K

3.1 - 6.2 mi

Top 86%
×5stories
+79ft-138ft

Overall

24460

Females

9940

F50-54

9940

10K→15K

6.2 - 9.3 mi

Top 83%
×3stories
+67ft-78ft

Overall

23486

Females

9367

F50-54

9367

15K→20K

9.3 - 12.4 mi

Top 80%
×5stories
+106ft-86ft

Overall

22764

Females

9012

F50-54

9012

20K→Half

12.4 - 13.1 mi

Top 78%
×2stories
+19ft-37ft

Overall

22085

Females

8642

F50-54

8642

Half→25K

13.1 - 15.5 mi

Top 68%
×4stories
+66ft-88ft

Overall

19286

Females

7138

F50-54

7138

25K→30K

15.5 - 18.6 mi

Top 64%
×9stories
+181ft-148ft

Overall

18051

Females

6606

F50-54

6606

30K→20M

18.6 - 20.0 mi

Top 62%
×5stories
+64ft-50ft

Overall

17626

Females

6490

F50-54

6490

20M→21M

20.0 - 21.0 mi

Top 51%
×8stories
+106ft-24ft

Overall

14484

Females

4896

F50-54

4896

21M→35K

21.0 - 21.8 mi

Top 59%
×7stories
+17ft-86ft

Overall

16685

Females

6181

F50-54

6181

35K→23M

21.8 - 23.0 mi

Top 53%
×5stories
+23ft-63ft

Overall

14998

Females

5344

F50-54

5344

23M→24M

23.0 - 24.0 mi

Top 51%
×6stories
+12ft-82ft

Overall

14349

Females

5018

F50-54

5018

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

11287

Females

3571

F50-54

3571

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

11592

Females

3829

F50-54

3829

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2stories
+22ft-21ft

Overall

10276

Females

3136

F50-54

3136

Passing Analysis

Category:
Athletes Passed
4356
Passed By
403
Net Change
+3953
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24157
5K → 10K154333-179#24157#24336
10K → 15K32436+288#24336#24048
15K → 20K33619+317#24048#23731
20K → Half711+70#23731#23661
Half → 25K6242+622#23661#23039
25K → 30K7840+784#23039#22255
30K → 20M3220+322#22255#21933
20M → 21M3670+367#21933#21566
21M → 35K1702+168#21566#21398
35K → 23M3432+341#21398#21057
23M → 24M2224+218#21057#20839
24M → 40K2670+267#20839#20572
40K → 25.2M994+95#20572#20477
25.2M → Finish2730+273#20477#20204
TOTALS4356403+3953
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing