Boston Marathon logo
BOSTON MARATHON 2023

Catherine Diamond

Bib: 25629•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

Start
0:00:00
Race begins
5K· 3.11 mi
34:20
Rank: #25752
Start → 5K
34:20 | 11:03/mi
10K· 6.21 mi
1:07:01
Rank: #25239 (+513)
5K → 10K
32:41 | 10:31/mi
15K· 9.32 mi
1:41:02
Rank: #25201 (+38)
10K → 15K
34:01 | 10:57/mi
20K· 12.43 mi
2:12:17
Rank: #24671 (+530)
15K → 20K
31:15 | 10:04/mi
Half· 13.11 mi
2:19:11
Rank: #24618 (+53)
20K → Half
6:54 | 10:07/mi
25K· 15.53 mi
2:45:51
Rank: #24510 (+108)
Half → 25K
26:40 | 11:00/mi
30K· 18.64 mi
3:18:57
Rank: #24112 (+398)
25K → 30K
33:06 | 10:39/mi
20M
3:32:51
Rank: #23934 (+178)
30K → 20M
13:54 | 10:14/mi
21M
3:43:19
Rank: #23722 (+212)
20M → 21M
10:28 | 10:28/mi
35K· 21.75 mi
3:50:49
Rank: #23654 (+68)
21M → 35K
7:30 | 10:01/mi
23M
4:02:59
Rank: #23475 (+179)
35K → 23M
12:10 | 9:43/mi
24M
4:12:17
Rank: #23317 (+158)
23M → 24M
9:18 | 9:18/mi
40K· 24.85 mi
4:20:08
Rank: #23135 (+182)
24M → 40K
7:51 | 9:11/mi
25.2M
4:23:31
Rank: #23064 (+71)
40K → 25.2M
3:23 | 9:49/mi
Finish· 26.22 mi
4:32:22
Rank: #22908 (+156)
25.2M → Finish
8:51 | 8:41/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
Time2:19:11
Pace10:37 /mi
2nd Half✓ Faster
Distance13.11 mi
Time2:13:11
Pace10:10 /mi
📊Negative Split: 4.3% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:3934:2011:0334:20
11:03
-
10K
6.21 mi12:25:201:07:0110:4732:41
10:31
-0:32
15K
9.32 mi12:59:211:41:0210:5034:01
10:57
+0:26
20K
12.43 mi13:30:362:12:1710:3931:15
10:04
-0:53
Half
13.11 mi13:37:302:19:1110:376:54
10:07
+0:03
25K
15.53 mi14:04:102:45:5110:4126:40
11:00
+0:53
30K
18.64 mi14:37:163:18:5710:4033:06
10:39
-0:21
20M
20.00 mi14:51:103:32:5110:3913:54
10:14
-0:25
21M
21.00 mi15:01:383:43:1910:3810:28
10:28
+0:14
35K
21.75 mi15:09:083:50:4910:377:30
10:01
-0:27
23M
23.00 mi15:21:184:02:5910:3412:10
9:43
-0:18
24M
24.00 mi15:30:364:12:1710:319:18
9:18
-0:25
40K
24.85 mi15:38:274:20:0810:287:51
9:11
-0:07
25.2M
25.20 mi15:41:504:23:3110:273:23
9:49
+0:38
Finish
26.22 mi15:50:414:32:2210:248:51
8:41
-1:08

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

8:41 /mi

Average Pace

10:24 /mi

Slowest Pace

11:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

38:10

14% of race

Time at Steady Pace

1:02:56

23% of race

Time at Slower Pace

2:51:16

63% of race

Average Pace: 10:23 /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 mi11:52:3934:2011:0334:20
11:03
#25752
10K
6.21 mi12:25:201:07:0110:4732:41
10:31
#25239
15K
9.32 mi12:59:211:41:0210:5034:01
10:57
#25201
20K
12.43 mi13:30:362:12:1710:3931:15
10:04
#24671
Half
13.11 mi13:37:302:19:1110:376:54
10:07
#24618
25K
15.53 mi14:04:102:45:5110:4126:40
11:00
#24510
30K
18.64 mi14:37:163:18:5710:4033:06
10:39
#24112
20M
20.00 mi14:51:103:32:5110:3913:54
10:14
#23934
21M
21.00 mi15:01:383:43:1910:3810:28
10:28
#23722
35K
21.75 mi15:09:083:50:4910:377:30
10:01
#23654
23M
23.00 mi15:21:184:02:5910:3412:10
9:43
#23475
24M
24.00 mi15:30:364:12:1710:319:18
9:18
#23317
40K
24.85 mi15:38:274:20:0810:287:51
9:11
#23135
25.2M
25.20 mi15:41:504:23:3110:273:23
9:49
#23064
Finish
26.22 mi15:50:414:32:2210:248:51
8:41
#22908
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25752108881088825126(Top 94%)10531(Top 92%)10531(Top 216%)
10K6.21 mi3.10 mi25239+51310562+32610562+32624713(Top 93%)10285(Top 90%)10285(Top 211%)
15K9.32 mi3.11 mi25201+3810554+810554+825126(Top 94%)10531(Top 92%)10531(Top 216%)
20K12.43 mi3.11 mi24671+53010272+28210272+28223041(Top 87%)9367(Top 82%)9367(Top 192%)
Half13.11 mi0.68 mi24618+5310244+2810244+2823517(Top 88%)9634(Top 84%)9634(Top 197%)
25K15.53 mi2.42 mi24510+10810192+5210192+5223972(Top 90%)9942(Top 87%)9942(Top 204%)
30K18.64 mi3.11 mi24112+3989979+2139979+21322516(Top 85%)9194(Top 80%)9194(Top 188%)
20M20.00 mi1.36 mi23934+1789883+969883+9621109(Top 79%)8477(Top 74%)8477(Top 174%)
21M21.00 mi1.00 mi23722+2129783+1009783+10019520(Top 73%)7662(Top 67%)7662(Top 157%)
35K21.75 mi0.75 mi23654+689752+319752+3121372(Top 80%)8702(Top 76%)8702(Top 178%)
23M23.00 mi1.25 mi23475+1799668+849668+8419165(Top 72%)7513(Top 66%)7513(Top 154%)
24M24.00 mi1.00 mi23317+1589591+779591+7718492(Top 69%)7169(Top 63%)7169(Top 147%)
40K24.85 mi0.85 mi23135+1829512+799512+7917067(Top 64%)6452(Top 56%)6452(Top 132%)
25.2M25.20 mi0.35 mi23064+719477+359477+3516698(Top 63%)6287(Top 55%)6287(Top 129%)
Finish26.22 mi1.02 mi22908+1569403+749403+7416443(Top 62%)6080(Top 53%)6080(Top 124%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21stories
+97ft-345ft

Overall

25126

Females

10531

F18-39

10531

5K→10K

3.1 - 6.2 mi

Top 93%
×5stories
+79ft-138ft

Overall

24713

Females

10285

F18-39

10285

10K→15K

6.2 - 9.3 mi

Top 94%
×3stories
+67ft-78ft

Overall

25126

Females

10531

F18-39

10531

15K→20K

9.3 - 12.4 mi

Top 87%
×5stories
+106ft-86ft

Overall

23041

Females

9367

F18-39

9367

20K→Half

12.4 - 13.1 mi

Top 88%
×2stories
+19ft-37ft

Overall

23517

Females

9634

F18-39

9634

Half→25K

13.1 - 15.5 mi

Top 90%
×4stories
+66ft-88ft

Overall

23972

Females

9942

F18-39

9942

25K→30K

15.5 - 18.6 mi

Top 85%
×9stories
+181ft-148ft

Overall

22516

Females

9194

F18-39

9194

30K→20M

18.6 - 20.0 mi

Top 79%
×5stories
+64ft-50ft

Overall

21109

Females

8477

F18-39

8477

20M→21M

20.0 - 21.0 mi

Top 73%
×8stories
+106ft-24ft

Overall

19520

Females

7662

F18-39

7662

21M→35K

21.0 - 21.8 mi

Top 80%
×7stories
+17ft-86ft

Overall

21372

Females

8702

F18-39

8702

35K→23M

21.8 - 23.0 mi

Top 72%
×5stories
+23ft-63ft

Overall

19165

Females

7513

F18-39

7513

23M→24M

23.0 - 24.0 mi

Top 69%
×6stories
+12ft-82ft

Overall

18492

Females

7169

F18-39

7169

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

17067

Females

6452

F18-39

6452

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

16698

Females

6287

F18-39

6287

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2stories
+22ft-21ft

Overall

16443

Females

6080

F18-39

6080

Passing Analysis

Category:
Athletes Passed
2985
Passed By
141
Net Change
+2844
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25752
5K → 10K52815+513#25752#25239
10K → 15K12587+38#25239#25201
15K → 20K5300+530#25201#24671
20K → Half552+53#24671#24618
Half → 25K13628+108#24618#24510
25K → 30K4024+398#24510#24112
30K → 20M1780+178#24112#23934
20M → 21M2131+212#23934#23722
21M → 35K691+68#23722#23654
35K → 23M1801+179#23654#23475
23M → 24M1591+158#23475#23317
24M → 40K1831+182#23317#23135
40K → 25.2M710+71#23135#23064
25.2M → Finish1560+156#23064#22908
TOTALS2985141+2844
📊

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