Boston Marathon logo
BOSTON MARATHON 2023

Deirdre Peters

Bib: 25181•F

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ 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
12:00/mi
37:16
↑ 97↓ 3451.5%
10K· 6.21 mi
12:21/mi
1:15:38
↑ 79↓ 1380.4%
15K· 9.32 mi
12:35/mi
1:54:45
↑ 67↓ 78
20K· 12.43 mi
13:15/mi
2:35:56
↑ 106↓ 860.1%
Half· 13.11 mi
13:39/mi
2:45:15
↑ 19↓ 370.5%
25K· 15.53 mi
14:17/mi
3:19:54
↑ 66↓ 880.2%
30K· 18.64 mi
14:53/mi
4:06:08
↑ 181↓ 1480.2%
20M
14:55/mi
4:26:24
↑ 64↓ 500.2%
21M
16:15/mi
4:42:39
↑ 106↓ 241.6%
35K· 21.75 mi
14:33/mi
4:53:32
↑ 17↓ 861.7%
23M
14:45/mi
5:12:00
↑ 23↓ 630.6%
24M
14:18/mi
5:26:18
↓ 821.3%
40K· 24.85 mi
14:30/mi
5:38:42
↓ 200.3%
25.2M
15:22/mi
5:44:00
↑ 13↓ 160.2%
Finish· 26.22 mi
13:40/mi
5:57:56
↑ 22↓ 21

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
Time2:45:15
Pace12:36 /mi
2nd Half
Distance13.11 mi
Time3:12:41
Pace14:42 /mi
📊Positive Split: 16.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:1937:1612:0037:16
12:00
-
10K
6.21 mi12:31:411:15:3812:1038:22
12:21
+0:21
15K
9.32 mi13:10:481:54:4512:1939:07
12:35
+0:14
20K
12.43 mi13:51:592:35:5612:3341:11
13:15
+0:40
Half
13.11 mi14:01:182:45:1512:369:19
13:39
+0:24
25K
15.53 mi14:35:573:19:5412:5234:39
14:17
+0:38
30K
18.64 mi15:22:114:06:0813:1246:14
14:53
+0:36
20M
20.00 mi15:42:274:26:2413:1920:16
14:55
+0:02
21M
21.00 mi15:58:424:42:3913:2816:15
16:15
+1:20
35K
21.75 mi16:09:354:53:3213:3010:53
14:33
-1:42
23M
23.00 mi16:28:035:12:0013:3418:28
14:45
+0:12
24M
24.00 mi16:42:215:26:1813:3614:18
14:18
-0:27
40K
24.85 mi16:54:455:38:4213:3812:24
14:30
+0:12
25.2M
25.20 mi17:00:035:44:0013:395:18
15:22
+0:52
Finish
26.22 mi17:13:595:57:5613:4013:56
13:40
-1:42

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

12:00 /mi

Average Pace

13:40 /mi

Slowest Pace

16:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:59:11

50% of race

Time at Steady Pace

1:30:42

25% of race

Time at Slower Pace

1:28:03

25% of race

Average Pace: 13:39 /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 mi11:53:1937:1612:0037:16
12:00
#26432
10K
6.21 mi12:31:411:15:3812:1038:22
12:21
#26439
15K
9.32 mi13:10:481:54:4512:1939:07
12:35
#26425
20K
12.43 mi13:51:592:35:5612:3341:11
13:15
#26427
Half
13.11 mi14:01:182:45:1512:369:19
13:39
#26441
25K
15.53 mi14:35:573:19:5412:5234:39
14:17
#26457
30K
18.64 mi15:22:114:06:0813:1246:14
14:53
#26479
20M
20.00 mi15:42:274:26:2413:1920:16
14:55
#26482
21M
21.00 mi15:58:424:42:3913:2816:15
16:15
#26492
35K
21.75 mi16:09:354:53:3213:3010:53
14:33
#26494
23M
23.00 mi16:28:035:12:0013:3418:28
14:45
#26496
24M
24.00 mi16:42:215:26:1813:3614:18
14:18
#26497
40K
24.85 mi16:54:455:38:4213:3812:24
14:30
#26486
25.2M
25.20 mi17:00:035:44:0013:395:18
15:22
#26482
Finish
26.22 mi17:13:595:57:5613:4013:56
13:40
#26481
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26432113151131526354(Top 99%)11272(Top 99%)11272(Top 231%)
10K6.21 mi3.10 mi26439-711316-111316-126428(Top 99%)11316(Top 99%)11316(Top 232%)
15K9.32 mi3.11 mi26425+1411312+411312+426354(Top 99%)11272(Top 99%)11272(Top 231%)
20K12.43 mi3.11 mi26427-2113121131226348(Top 99%)11268(Top 99%)11268(Top 231%)
Half13.11 mi0.68 mi26441-1411321-911321-926485(Top 99%)11358(Top 99%)11358(Top 233%)
25K15.53 mi2.42 mi26457-1611331-1011331-1026434(Top 99%)11326(Top 99%)11326(Top 232%)
30K18.64 mi3.11 mi26479-2211341-1011341-1026385(Top 99%)11305(Top 99%)11305(Top 231%)
20M20.00 mi1.36 mi26482-311346-511346-526266(Top 99%)11267(Top 99%)11267(Top 231%)
21M21.00 mi1.00 mi26492-1011352-611352-626291(Top 99%)11268(Top 99%)11268(Top 231%)
35K21.75 mi0.75 mi26494-211354-211354-226316(Top 99%)11286(Top 99%)11286(Top 231%)
23M23.00 mi1.25 mi26496-211356-211356-226206(Top 98%)11243(Top 98%)11243(Top 230%)
24M24.00 mi1.00 mi26497-111355+111355+126190(Top 98%)11247(Top 98%)11247(Top 230%)
40K24.85 mi0.85 mi26486+1111350+511350+525956(Top 97%)11154(Top 98%)11154(Top 228%)
25.2M25.20 mi0.35 mi26482+411347+311347+325887(Top 97%)11119(Top 97%)11119(Top 228%)
Finish26.22 mi1.02 mi26481+111350-311350-326260(Top 99%)11295(Top 99%)11295(Top 231%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 99%
×21story building
+97ft-345ft

Overall

26354

Females

11272

F18-39

11272

5K→10K

3.1 - 6.2 mi

Top 99%
×5story building
+79ft-138ft

Overall

26428

Females

11316

F18-39

11316

10K→15K

6.2 - 9.3 mi

Top 99%
×3story building
+67ft-78ft

Overall

26354

Females

11272

F18-39

11272

15K→20K

9.3 - 12.4 mi

Top 99%
×5story building
+106ft-86ft

Overall

26348

Females

11268

F18-39

11268

20K→Half

12.4 - 13.1 mi

Top 99%
×2story building
+19ft-37ft

Overall

26485

Females

11358

F18-39

11358

Half→25K

13.1 - 15.5 mi

Top 99%
×4story building
+66ft-88ft

Overall

26434

Females

11326

F18-39

11326

25K→30K

15.5 - 18.6 mi

Top 99%
×9story building
+181ft-148ft

Overall

26385

Females

11305

F18-39

11305

30K→20M

18.6 - 20.0 mi

Top 99%
×5story building
+64ft-50ft

Overall

26266

Females

11267

F18-39

11267

20M→21M

20.0 - 21.0 mi

Top 99%
×8story building
+106ft-24ft

Overall

26291

Females

11268

F18-39

11268

21M→35K

21.0 - 21.8 mi

Top 99%
×7story building
+17ft-86ft

Overall

26316

Females

11286

F18-39

11286

35K→23M

21.8 - 23.0 mi

Top 98%
×5story building
+23ft-63ft

Overall

26206

Females

11243

F18-39

11243

23M→24M

23.0 - 24.0 mi

Top 98%
×6story building
+12ft-82ft

Overall

26190

Females

11247

F18-39

11247

24M→40K

24.0 - 24.9 mi

Top 97%
×1story
+6ft-20ft

Overall

25956

Females

11154

F18-39

11154

40K→25.2M

24.9 - 25.2 mi

Top 97%
×1story
+13ft-16ft

Overall

25887

Females

11119

F18-39

11119

25.2M→Finish

25.2 - 26.2 mi

Top 99%
×2story building
+22ft-21ft

Overall

26260

Females

11295

F18-39

11295

Passing Analysis

Category:
Athletes Passed
177
Passed By
226
Net Change
-49
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26432
5K → 10K3845-7#26432#26439
10K → 15K3622+14#26439#26425
15K → 20K2931-2#26425#26427
20K → Half216-14#26427#26441
Half → 25K1127-16#26441#26457
25K → 30K1133-22#26457#26479
30K → 20M912-3#26479#26482
20M → 21M212-10#26482#26492
21M → 35K35-2#26492#26494
35K → 23M57-2#26494#26496
23M → 24M45-1#26496#26497
24M → 40K165+11#26497#26486
40K → 25.2M51+4#26486#26482
25.2M → Finish65+1#26482#26481
TOTALS177226-49
📊

Passing Visuals

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