Boston Marathon logo
BOSTON MARATHON 2023

Meredith Crenca

Bib: 25595•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
37:20
Rank: #26436
Start → 5K
37:20 | 12:01/mi
10K· 6.21 mi
1:15:13
Rank: #26409 (+27)
5K → 10K
37:53 | 12:12/mi
15K· 9.32 mi
1:55:02
Rank: #26440 (-31)
10K → 15K
39:49 | 12:49/mi
20K· 12.43 mi
2:35:23
Rank: #26407 (+33)
15K → 20K
40:21 | 12:59/mi
Half· 13.11 mi
2:44:01
Rank: #26405 (+2)
20K → Half
8:38 | 12:39/mi
25K· 15.53 mi
3:16:01
Rank: #26348 (+57)
Half → 25K
32:00 | 13:12/mi
30K· 18.64 mi
3:56:35
Rank: #26246 (+102)
25K → 30K
40:34 | 13:03/mi
20M
4:15:20
Rank: #26205 (+41)
30K → 20M
18:45 | 13:48/mi
21M
4:30:24
Rank: #26193 (+12)
20M → 21M
15:04 | 15:04/mi
35K· 21.75 mi
4:40:17
Rank: #26183 (+10)
21M → 35K
9:53 | 13:13/mi
23M
4:57:50
Rank: #26183
35K → 23M
17:33 | 14:01/mi
24M
5:11:34
Rank: #26187 (-4)
23M → 24M
13:44 | 13:44/mi
40K· 24.85 mi
5:24:15
Rank: #26197 (-10)
24M → 40K
12:41 | 14:50/mi
25.2M
5:29:43
Rank: #26200 (-3)
40K → 25.2M
5:28 | 15:51/mi
Finish· 26.22 mi
5:42:19
Rank: #26186 (+14)
25.2M → Finish
12:36 | 12:22/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
Time2:44:01
Pace12:31 /mi
2nd Half
Distance13.11 mi
Time2:58:18
Pace13:36 /mi
📊Positive Split: 8.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:0637:2012:0137:20
12:01
-
10K
6.21 mi12:30:591:15:1312:0637:53
12:12
+0:11
15K
9.32 mi13:10:481:55:0212:2139:49
12:49
+0:37
20K
12.43 mi13:51:092:35:2312:3040:21
12:59
+0:10
Half
13.11 mi13:59:472:44:0112:318:38
12:39
-0:20
25K
15.53 mi14:31:473:16:0112:3732:00
13:12
+0:33
30K
18.64 mi15:12:213:56:3512:4140:34
13:03
-0:09
20M
20.00 mi15:31:064:15:2012:4618:45
13:48
+0:45
21M
21.00 mi15:46:104:30:2412:5315:04
15:04
+1:16
35K
21.75 mi15:56:034:40:1712:539:53
13:13
-1:51
23M
23.00 mi16:13:364:57:5012:5717:33
14:01
+0:48
24M
24.00 mi16:27:205:11:3412:5913:44
13:44
-0:17
40K
24.85 mi16:40:015:24:1513:0312:41
14:50
+1:06
25.2M
25.20 mi16:45:295:29:4313:055:28
15:51
+1:01
Finish
26.22 mi16:58:055:42:1913:0412:36
12:22
-3:29

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

12:01 /mi

Average Pace

13:04 /mi

Slowest Pace

15:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:27

28% of race

Time at Steady Pace

2:56:21

52% of race

Time at Slower Pace

1:09:31

20% of race

Average Pace: 13:03 /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 mi11:53:0637:2012:0137:20
12:01
#26436
10K
6.21 mi12:30:591:15:1312:0637:53
12:12
#26409
15K
9.32 mi13:10:481:55:0212:2139:49
12:49
#26440
20K
12.43 mi13:51:092:35:2312:3040:21
12:59
#26407
Half
13.11 mi13:59:472:44:0112:318:38
12:39
#26405
25K
15.53 mi14:31:473:16:0112:3732:00
13:12
#26348
30K
18.64 mi15:12:213:56:3512:4140:34
13:03
#26246
20M
20.00 mi15:31:064:15:2012:4618:45
13:48
#26205
21M
21.00 mi15:46:104:30:2412:5315:04
15:04
#26193
35K
21.75 mi15:56:034:40:1712:539:53
13:13
#26183
23M
23.00 mi16:13:364:57:5012:5717:33
14:01
#26183
24M
24.00 mi16:27:205:11:3412:5913:44
13:44
#26187
40K
24.85 mi16:40:015:24:1513:0312:41
14:50
#26197
25.2M
25.20 mi16:45:295:29:4313:055:28
15:51
#26200
Finish
26.22 mi16:58:055:42:1913:0412:36
12:22
#26186
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26436113171131726437(Top 99%)11322(Top 99%)11322(Top 232%)
10K6.21 mi3.10 mi26409+2711297+2011297+2026371(Top 99%)11279(Top 99%)11279(Top 231%)
15K9.32 mi3.11 mi26440-3111321-2411321-2426437(Top 99%)11322(Top 99%)11322(Top 232%)
20K12.43 mi3.11 mi26407+3311297+2411297+2426223(Top 99%)11187(Top 98%)11187(Top 229%)
Half13.11 mi0.68 mi26405+211296+111296+126234(Top 99%)11204(Top 98%)11204(Top 229%)
25K15.53 mi2.42 mi26348+5711251+4511251+4525973(Top 98%)11068(Top 97%)11068(Top 227%)
30K18.64 mi3.11 mi26246+10211194+5711194+5725467(Top 96%)10825(Top 95%)10825(Top 222%)
20M20.00 mi1.36 mi26205+4111179+1511179+1525726(Top 97%)10976(Top 96%)10976(Top 225%)
21M21.00 mi1.00 mi26193+1211174+511174+525765(Top 97%)10991(Top 96%)10991(Top 225%)
35K21.75 mi0.75 mi26183+1011173+111173+125712(Top 97%)11001(Top 96%)11001(Top 225%)
23M23.00 mi1.25 mi2618311176-311176-325840(Top 97%)11062(Top 97%)11062(Top 226%)
24M24.00 mi1.00 mi26187-411180-411180-425940(Top 97%)11136(Top 97%)11136(Top 228%)
40K24.85 mi0.85 mi26197-1011187-711187-726087(Top 98%)11213(Top 98%)11213(Top 230%)
25.2M25.20 mi0.35 mi26200-311188-111188-126081(Top 98%)11202(Top 98%)11202(Top 229%)
Finish26.22 mi1.02 mi26186+1411178+1011178+1025586(Top 96%)10968(Top 96%)10968(Top 225%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 99%
×21stories
+97ft-345ft

Overall

26437

Females

11322

F18-39

11322

5K→10K

3.1 - 6.2 mi

Top 99%
×5stories
+79ft-138ft

Overall

26371

Females

11279

F18-39

11279

10K→15K

6.2 - 9.3 mi

Top 99%
×3stories
+67ft-78ft

Overall

26437

Females

11322

F18-39

11322

15K→20K

9.3 - 12.4 mi

Top 99%
×5stories
+106ft-86ft

Overall

26223

Females

11187

F18-39

11187

20K→Half

12.4 - 13.1 mi

Top 99%
×2stories
+19ft-37ft

Overall

26234

Females

11204

F18-39

11204

Half→25K

13.1 - 15.5 mi

Top 98%
×4stories
+66ft-88ft

Overall

25973

Females

11068

F18-39

11068

25K→30K

15.5 - 18.6 mi

Top 96%
×9stories
+181ft-148ft

Overall

25467

Females

10825

F18-39

10825

30K→20M

18.6 - 20.0 mi

Top 97%
×5stories
+64ft-50ft

Overall

25726

Females

10976

F18-39

10976

20M→21M

20.0 - 21.0 mi

Top 97%
×8stories
+106ft-24ft

Overall

25765

Females

10991

F18-39

10991

21M→35K

21.0 - 21.8 mi

Top 97%
×7stories
+17ft-86ft

Overall

25712

Females

11001

F18-39

11001

35K→23M

21.8 - 23.0 mi

Top 97%
×5stories
+23ft-63ft

Overall

25840

Females

11062

F18-39

11062

23M→24M

23.0 - 24.0 mi

Top 97%
×6stories
+12ft-82ft

Overall

25940

Females

11136

F18-39

11136

24M→40K

24.0 - 24.9 mi

Top 98%
×1story
+6ft-20ft

Overall

26087

Females

11213

F18-39

11213

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

26081

Females

11202

F18-39

11202

25.2M→Finish

25.2 - 26.2 mi

Top 96%
×2stories
+22ft-21ft

Overall

25586

Females

10968

F18-39

10968

Passing Analysis

Category:
Athletes Passed
430
Passed By
180
Net Change
+250
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26436
5K → 10K5225+27#26436#26409
10K → 15K2051-31#26409#26440
15K → 20K4714+33#26440#26407
20K → Half97+2#26407#26405
Half → 25K636+57#26405#26348
25K → 30K1075+102#26348#26246
30K → 20M465+41#26246#26205
20M → 21M2210+12#26205#26193
21M → 35K122+10#26193#26183
35K → 23M15150#26183#26183
23M → 24M913-4#26183#26187
24M → 40K515-10#26187#26197
40K → 25.2M47-3#26197#26200
25.2M → Finish195+14#26200#26186
TOTALS430180+250
📊

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