Boston Marathon logo
BOSTON MARATHON 2025

Stephanie Bruce

Bib: 135•F

AZ

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 2%
Gender (Female)
#0 / 12228
Top 0.3%
Masters (Masters Women)
#0 / 6759
Top 0.1%
Division (F40-44)
#0 / 1718
Top 0.3%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
17:29
Rank: #330
Start → 5K
17:29 | 5:38/mi
10K· 6.21 mi
35:18
Rank: #408 (-78)
5K → 10K
17:49 | 5:44/mi
15K· 9.32 mi
53:41
Rank: #519 (-111)
10K → 15K
18:23 | 5:55/mi
20K· 12.43 mi
1:11:53
Rank: #505 (+14)
15K → 20K
18:12 | 5:51/mi
Half· 13.11 mi
1:15:52
Rank: #512 (-7)
20K → Half
3:59 | 5:50/mi
25K· 15.53 mi
1:30:08
Rank: #494 (+18)
Half → 25K
14:16 | 5:53/mi
30K· 18.64 mi
1:48:57
Rank: #499 (-5)
25K → 30K
18:49 | 6:03/mi
20M
1:57:31
Rank: #513 (-14)
30K → 20M
8:34 | 6:18/mi
21M
2:04:12
Rank: #534 (-21)
20M → 21M
6:41 | 6:41/mi
35K· 21.75 mi
2:08:54
Rank: #547 (-13)
21M → 35K
4:42 | 6:17/mi
23M
2:16:45
Rank: #550 (-3)
35K → 23M
7:51 | 6:16/mi
24M
2:23:01
Rank: #562 (-12)
23M → 24M
6:16 | 6:16/mi
40K· 24.85 mi
2:28:16
Rank: #558 (+4)
24M → 40K
5:15 | 6:08/mi
25.2M
2:30:32
Rank: #547 (+11)
40K → 25.2M
2:16 | 6:34/mi
Finish· 26.22 mi
2:36:09
Rank: #512 (+35)
25.2M → Finish
5:37 | 5:31/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 HalfFaster
Distance13.11 mi
Time1:15:52
Pace5:47 /mi
2nd Half
Distance13.11 mi
Time1:20:17
Pace6:07 /mi
📊Positive Split: 5.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:04:3117:295:3817:29
5:38
-
10K
6.21 mi10:22:2035:185:4117:49
5:44
+0:06
15K
9.32 mi10:40:4353:415:4618:23
5:55
+0:11
20K
12.43 mi10:58:551:11:535:4718:12
5:51
-0:04
Half
13.11 mi11:02:541:15:525:473:59
5:50
-0:01
25K
15.53 mi11:17:101:30:085:4814:16
5:53
+0:03
30K
18.64 mi11:35:591:48:575:5118:49
6:03
+0:10
20M
20.00 mi11:44:331:57:315:538:34
6:18
+0:15
21M
21.00 mi11:51:142:04:125:556:41
6:41
+0:23
35K
21.75 mi11:55:562:08:545:564:42
6:17
-0:24
23M
23.00 mi12:03:472:16:455:577:51
6:16
-0:01
24M
24.00 mi12:10:032:23:015:586:16
6:16
0:00
40K
24.85 mi12:15:182:28:165:585:15
6:08
-0:08
25.2M
25.20 mi12:17:342:30:325:582:16
6:34
+0:26
Finish
26.22 mi12:23:112:36:095:585:37
5:31
-1:03

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

5:31 /mi

Average Pace

5:58 /mi

Slowest Pace

6:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:17:22

50% of race

Time at Steady Pace

42:27

27% of race

Time at Slower Pace

36:20

23% of race

Average Pace: 5:57 /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 mi10:04:3117:295:3817:29
5:38
#330
10K
6.21 mi10:22:2035:185:4117:49
5:44
#408
15K
9.32 mi10:40:4353:415:4618:23
5:55
#519
20K
12.43 mi10:58:551:11:535:4718:12
5:51
#505
Half
13.11 mi11:02:541:15:525:473:59
5:50
#512
25K
15.53 mi11:17:101:30:085:4814:16
5:53
#494
30K
18.64 mi11:35:591:48:575:5118:49
6:03
#499
20M
20.00 mi11:44:331:57:315:538:34
6:18
#513
21M
21.00 mi11:51:142:04:125:556:41
6:41
#534
35K
21.75 mi11:55:562:08:545:564:42
6:17
#547
23M
23.00 mi12:03:472:16:455:577:51
6:16
#550
24M
24.00 mi12:10:032:23:015:586:16
6:16
#562
40K
24.85 mi12:15:182:28:165:585:15
6:08
#558
25.2M
25.20 mi12:17:342:30:325:582:16
6:34
#547
Finish
26.22 mi12:23:112:36:095:585:37
5:31
#512
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi3302929802(Top 3%)47(Top 0.4%)47(Top 3%)
10K6.21 mi3.10 mi408-7831-231-2513(Top 2%)34(Top 0.3%)34(Top 2%)
15K9.32 mi3.11 mi519-11134-334-3802(Top 3%)47(Top 0.4%)47(Top 3%)
20K12.43 mi3.11 mi505+1433+133+1538(Top 2%)38(Top 0.3%)38(Top 2%)
Half13.11 mi0.68 mi512-73333693(Top 2%)42(Top 0.3%)42(Top 2%)
25K15.53 mi2.42 mi494+183333548(Top 2%)38(Top 0.3%)38(Top 2%)
30K18.64 mi3.11 mi499-537-437-4593(Top 2%)37(Top 0.3%)37(Top 2%)
20M20.00 mi1.36 mi513-1440-340-3987(Top 3%)50(Top 0.4%)50(Top 3%)
21M21.00 mi1.00 mi534-2140401171(Top 4%)55(Top 0.4%)55(Top 3%)
35K21.75 mi0.75 mi547-1341-141-11570(Top 6%)84(Top 0.7%)84(Top 5%)
23M23.00 mi1.25 mi550-340+140+1826(Top 3%)42(Top 0.3%)42(Top 2%)
24M24.00 mi1.00 mi562-1241-141-11238(Top 4%)70(Top 0.6%)70(Top 4%)
40K24.85 mi0.85 mi558+44141634(Top 2%)37(Top 0.3%)37(Top 2%)
25.2M25.20 mi0.35 mi547+114141591(Top 2%)37(Top 0.3%)37(Top 2%)
Finish26.22 mi1.02 mi512+3536+536+5163(Top 0.6%)8(Top 0.07%)8(Top 0.5%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21stories
+97ft-345ft

Overall

802

Females

47

F40-44

47

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

513

Females

34

F40-44

34

10K→15K

6.2 - 9.3 mi

Top 3%
×3stories
+67ft-78ft

Overall

802

Females

47

F40-44

47

15K→20K

9.3 - 12.4 mi

Top 2%
×5stories
+106ft-86ft

Overall

538

Females

38

F40-44

38

20K→Half

12.4 - 13.1 mi

Top 2%
×2stories
+19ft-37ft

Overall

693

Females

42

F40-44

42

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

548

Females

38

F40-44

38

25K→30K

15.5 - 18.6 mi

Top 2%
×9stories
+181ft-148ft

Overall

593

Females

37

F40-44

37

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

987

Females

50

F40-44

50

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

1171

Females

55

F40-44

55

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1570

Females

84

F40-44

84

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

826

Females

42

F40-44

42

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

1238

Females

70

F40-44

70

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

634

Females

37

F40-44

37

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

591

Females

37

F40-44

37

25.2M→Finish

25.2 - 26.2 mi

Top 0.6%
×2stories
+22ft-21ft

Overall

163

Females

8

F40-44

8

Passing Analysis

Category:
Athletes Passed
172
Passed By
354
Net Change
-182
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#330
5K → 10K482-78#330#408
10K → 15K3114-111#408#519
15K → 20K239+14#519#505
20K → Half29-7#505#512
Half → 25K246+18#512#494
25K → 30K2025-5#494#499
30K → 20M923-14#499#513
20M → 21M425-21#513#534
21M → 35K619-13#534#547
35K → 23M1215-3#547#550
23M → 24M820-12#550#562
24M → 40K117+4#562#558
40K → 25.2M110+11#558#547
25.2M → Finish350+35#547#512
TOTALS172354-182
📊

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