Boston Marathon logo
BOSTON MARATHON 2025

Lori Dierig

FL

Bib: 24836 F

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F55-59)
#0 / 994
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:36/mi
26:44
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:30/mi
53:07
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:46/mi
1:20:22
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
9:04/mi
1:48:31
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
9:07/mi
1:54:44
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
9:37/mi
2:18:04
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
10:30/mi
2:50:40
↑ 181↓ 1480.2%
138 ft elev
20M
11:09/mi
3:05:49
↑ 64↓ 500.2%
148 ft elev
21M
12:02/mi
3:17:51
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
10:47/mi
3:25:55
↑ 17↓ 861.7%
156 ft elev
23M
10:36/mi
3:39:11
↑ 23↓ 630.6%
116 ft elev
24M
10:01/mi
3:49:12
↓ 821.3%
34 ft elev
40K· 24.85 mi
10:48/mi
3:58:26
↓ 200.3%
20 ft elev
25.2M
11:59/mi
4:02:34
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
10:36/mi
4:13:22
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:54:448:45 /mi⚡ faster
2nd Half
2:18:3810:35 /mi+20.8%
Positive split — 20.8% slower in the second half
Is this your race?

Claim it for a free AI report

A coach's-eye read of your race — emailed to you, free.

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:0926:448:3626:44
8:36
-
10K
6.21 mi11:53:3253:078:3326:23
8:30
-0:06
15K
9.32 mi12:20:471:20:228:3727:15
8:46
+0:16
20K
12.43 mi12:48:561:48:318:4428:09
9:04
+0:18
Half
13.11 mi12:55:091:54:448:456:13
9:07
+0:03
25K
15.53 mi13:18:292:18:048:5323:20
9:37
+0:30
30K
18.64 mi13:51:052:50:409:0932:36
10:30
+0:53
20M
20.00 mi14:06:143:05:499:1715:09
11:09
+0:39
21M
21.00 mi14:18:163:17:519:2512:02
12:02
+0:53
35K
21.75 mi14:26:203:25:559:288:04
10:47
-1:15
23M
23.00 mi14:39:363:39:119:3213:16
10:36
-0:11
24M
24.00 mi14:49:373:49:129:3310:01
10:01
-0:35
40K
24.85 mi14:58:513:58:269:369:14
10:48
+0:47
25.2M
25.20 mi15:02:594:02:349:384:08
11:59
+1:11
Finish
26.22 mi15:13:474:13:229:4010:48
10:36
-1:23

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

8:30 /mi

Average Pace

9:40 /mi

Slowest Pace

12:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:18:04

54% of race

Time at Steady Pace

1:23:59

33% of race

Time at Slower Pace

31:19

12% of race

Average Pace: 9:40 /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 mi11:27:0926:448:3626:44
8:36
#20496
10K
6.21 mi11:53:3253:078:3326:23
8:30
#20132
15K
9.32 mi12:20:471:20:228:3727:15
8:46
#20328
20K
12.43 mi12:48:561:48:318:4428:09
9:04
#20598
Half
13.11 mi12:55:091:54:448:456:13
9:07
#20682
25K
15.53 mi13:18:292:18:048:5323:20
9:37
#21037
30K
18.64 mi13:51:052:50:409:0932:36
10:30
#21573
20M
20.00 mi14:06:143:05:499:1715:09
11:09
#21837
21M
21.00 mi14:18:163:17:519:2512:02
12:02
#21989
35K
21.75 mi14:26:203:25:559:288:04
10:47
#22071
23M
23.00 mi14:39:363:39:119:3213:16
10:36
#22065
24M
24.00 mi14:49:373:49:129:3310:01
10:01
#22021
40K
24.85 mi14:58:513:58:269:369:14
10:48
#22043
25.2M
25.20 mi15:02:594:02:349:384:08
11:59
#22067
Finish
26.22 mi15:13:474:13:229:4010:48
10:36
#22156
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi20496780478042089379427942
10K6.21 mi3.10 mi20132+3647554+2507554+2501976373437343
15K9.32 mi3.11 mi20328-1967659-1057659-1052089379427942
20K12.43 mi3.11 mi20598-2707815-1567815-1562127881918191
Half13.11 mi0.68 mi20682-847864-497864-492229887808780
25K15.53 mi2.42 mi21037-3558062-1988062-1982227888048804
30K18.64 mi3.11 mi21573-5368387-3258387-3252293092799279
20M20.00 mi1.36 mi21837-2648545-1588545-1582388498929892
21M21.00 mi1.00 mi21989-1528658-1138658-1132365998429842
35K21.75 mi0.75 mi22071-828713-558713-552378199359935
23M23.00 mi1.25 mi22065+68753-408753-402226592079207
24M24.00 mi1.00 mi22021+448751+28751+22143188268826
40K24.85 mi0.85 mi22043-228783-328783-322268995489548
25.2M25.20 mi0.35 mi22067-248802-198802-192322097719771
Finish26.22 mi1.02 mi22156-898869-678869-67245061040710407

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21story building
+97ft-345ft

Overall

20893

Females

7942

F55-59

7942

5K→10K

3.1 - 6.2 mi

Top 70%
×5story building
+79ft-138ft

Overall

19763

Females

7343

F55-59

7343

10K→15K

6.2 - 9.3 mi

Top 74%
×3story building
+67ft-78ft

Overall

20893

Females

7942

F55-59

7942

15K→20K

9.3 - 12.4 mi

Top 75%
×5story building
+106ft-86ft

Overall

21278

Females

8191

F55-59

8191

20K→Half

12.4 - 13.1 mi

Top 79%
×2story building
+19ft-37ft

Overall

22298

Females

8780

F55-59

8780

Half→25K

13.1 - 15.5 mi

Top 78%
×4story building
+66ft-88ft

Overall

22278

Females

8804

F55-59

8804

25K→30K

15.5 - 18.6 mi

Top 81%
×9story building
+181ft-148ft

Overall

22930

Females

9279

F55-59

9279

30K→20M

18.6 - 20.0 mi

Top 84%
×5story building
+64ft-50ft

Overall

23884

Females

9892

F55-59

9892

20M→21M

20.0 - 21.0 mi

Top 83%
×8story building
+106ft-24ft

Overall

23659

Females

9842

F55-59

9842

21M→35K

21.0 - 21.8 mi

Top 84%
×7story building
+17ft-86ft

Overall

23781

Females

9935

F55-59

9935

35K→23M

21.8 - 23.0 mi

Top 78%
×5story building
+23ft-63ft

Overall

22265

Females

9207

F55-59

9207

23M→24M

23.0 - 24.0 mi

Top 75%
×6story building
+12ft-82ft

Overall

21431

Females

8826

F55-59

8826

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

22689

Females

9548

F55-59

9548

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

23220

Females

9771

F55-59

9771

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2story building
+22ft-21ft

Overall

24506

Females

10407

F55-59

10407

Passing Analysis

Category:
Athletes Passed
1241
Passed By
2901
Net Change
-1660
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20496
5K → 10K517153+364#20496#20132
10K → 15K123319-196#20132#20328
15K → 20K107377-270#20328#20598
20K → Half1599-84#20598#20682
Half → 25K57412-355#20682#21037
25K → 30K84620-536#21037#21573
30K → 20M30294-264#21573#21837
20M → 21M37189-152#21837#21989
21M → 35K22104-82#21989#22071
35K → 23M8579+6#22071#22065
23M → 24M7632+44#22065#22021
24M → 40K4163-22#22021#22043
40K → 25.2M1943-24#22043#22067
25.2M → Finish28117-89#22067#22156
TOTALS12412901-1660

Passing Charts

Category:
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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing