Boston Marathon logo
BOSTON MARATHON 2023

Cathy Mark

Bib: 22846•F

WI

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F50-54)
#0 / 1207
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:39
Rank: #19998
Start → 5K
27:39 | 8:54/mi
10K· 6.21 mi
55:42
Rank: #20493 (-495)
5K → 10K
28:03 | 9:02/mi
15K· 9.32 mi
1:24:16
Rank: #20762 (-269)
10K → 15K
28:34 | 9:12/mi
20K· 12.43 mi
1:52:13
Rank: #20487 (+275)
15K → 20K
27:57 | 9:00/mi
Half· 13.11 mi
1:58:19
Rank: #20475 (+12)
20K → Half
6:06 | 8:56/mi
25K· 15.53 mi
2:20:33
Rank: #20350 (+125)
Half → 25K
22:14 | 9:10/mi
30K· 18.64 mi
2:51:17
Rank: #20407 (-57)
25K → 30K
30:44 | 9:54/mi
20M
3:04:08
Rank: #20273 (+134)
30K → 20M
12:51 | 9:27/mi
21M
3:14:29
Rank: #20195 (+78)
20M → 21M
10:21 | 10:21/mi
35K· 21.75 mi
3:21:37
Rank: #20177 (+18)
21M → 35K
7:08 | 9:32/mi
23M
3:33:47
Rank: #20113 (+64)
35K → 23M
12:10 | 9:43/mi
24M
3:43:19
Rank: #20091 (+22)
23M → 24M
9:32 | 9:32/mi
40K· 24.85 mi
3:51:41
Rank: #20062 (+29)
24M → 40K
8:22 | 9:47/mi
25.2M
3:55:24
Rank: #20051 (+11)
40K → 25.2M
3:43 | 10:47/mi
Finish· 26.22 mi
4:05:23
Rank: #20073 (-22)
25.2M → Finish
9:59 | 9:48/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
Time1:58:19
Pace9:02 /mi
2nd Half
Distance13.11 mi
Time2:07:04
Pace9:42 /mi
📊Positive Split: 7.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:1327:398:5427:39
8:54
-
10K
6.21 mi11:52:1655:428:5828:03
9:02
+0:08
15K
9.32 mi12:20:501:24:169:0228:34
9:12
+0:10
20K
12.43 mi12:48:471:52:139:0227:57
9:00
-0:12
Half
13.11 mi12:54:531:58:199:026:06
8:56
-0:04
25K
15.53 mi13:17:072:20:339:0322:14
9:10
+0:14
30K
18.64 mi13:47:512:51:179:1130:44
9:54
+0:44
20M
20.00 mi14:00:423:04:089:1212:51
9:27
-0:27
21M
21.00 mi14:11:033:14:299:1610:21
10:21
+0:54
35K
21.75 mi14:18:113:21:379:167:08
9:32
-0:49
23M
23.00 mi14:30:213:33:479:1812:10
9:43
+0:11
24M
24.00 mi14:39:533:43:199:189:32
9:32
-0:11
40K
24.85 mi14:48:153:51:419:198:22
9:47
+0:15
25.2M
25.20 mi14:51:583:55:249:203:43
10:47
+1:00
Finish
26.22 mi15:01:574:05:239:229:59
9:48
-0:59

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

8:54 /mi

Average Pace

9:22 /mi

Slowest Pace

10:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:20:33

57% of race

Time at Steady Pace

50:03

20% of race

Time at Slower Pace

54:47

22% of race

Average Pace: 9:22 /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 mi11:24:1327:398:5427:39
8:54
#19998
10K
6.21 mi11:52:1655:428:5828:03
9:02
#20493
15K
9.32 mi12:20:501:24:169:0228:34
9:12
#20762
20K
12.43 mi12:48:471:52:139:0227:57
9:00
#20487
Half
13.11 mi12:54:531:58:199:026:06
8:56
#20475
25K
15.53 mi13:17:072:20:339:0322:14
9:10
#20350
30K
18.64 mi13:47:512:51:179:1130:44
9:54
#20407
20M
20.00 mi14:00:423:04:089:1212:51
9:27
#20273
21M
21.00 mi14:11:033:14:299:1610:21
10:21
#20195
35K
21.75 mi14:18:113:21:379:167:08
9:32
#20177
23M
23.00 mi14:30:213:33:479:1812:10
9:43
#20113
24M
24.00 mi14:39:533:43:199:189:32
9:32
#20091
40K
24.85 mi14:48:153:51:419:198:22
9:47
#20062
25.2M
25.20 mi14:51:583:55:249:203:43
10:47
#20051
Finish
26.22 mi15:01:574:05:239:229:59
9:48
#20073
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi199987818781821290(Top 80%)8396(Top 74%)8396(Top 696%)
10K6.21 mi3.10 mi20493-4958030-2128030-21220999(Top 79%)8263(Top 72%)8263(Top 685%)
15K9.32 mi3.11 mi20762-2698157-1278157-12721290(Top 80%)8396(Top 74%)8396(Top 696%)
20K12.43 mi3.11 mi20487+2757992+1657992+16519693(Top 74%)7494(Top 66%)7494(Top 621%)
Half13.11 mi0.68 mi20475+127982+107982+1020227(Top 76%)7798(Top 68%)7798(Top 646%)
25K15.53 mi2.42 mi20350+1257904+787904+7819725(Top 74%)7547(Top 66%)7547(Top 625%)
30K18.64 mi3.11 mi20407-577956-527956-5220730(Top 78%)8185(Top 72%)8185(Top 678%)
20M20.00 mi1.36 mi20273+1347899+577899+5718714(Top 70%)7146(Top 63%)7146(Top 592%)
21M21.00 mi1.00 mi20195+787860+397860+3919165(Top 72%)7445(Top 65%)7445(Top 617%)
35K21.75 mi0.75 mi20177+187863-37863-319975(Top 75%)7919(Top 69%)7919(Top 656%)
23M23.00 mi1.25 mi20113+647833+307833+3019155(Top 72%)7503(Top 66%)7503(Top 622%)
24M24.00 mi1.00 mi20091+227827+67827+619351(Top 73%)7641(Top 67%)7641(Top 633%)
40K24.85 mi0.85 mi20062+297820+77820+719373(Top 73%)7700(Top 67%)7700(Top 638%)
25.2M25.20 mi0.35 mi20051+117821-17821-119938(Top 75%)8027(Top 70%)8027(Top 665%)
Finish26.22 mi1.02 mi20073-227841-207841-2021150(Top 79%)8632(Top 76%)8632(Top 715%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21stories
+97ft-345ft

Overall

21290

Females

8396

F50-54

8396

5K→10K

3.1 - 6.2 mi

Top 79%
×5stories
+79ft-138ft

Overall

20999

Females

8263

F50-54

8263

10K→15K

6.2 - 9.3 mi

Top 80%
×3stories
+67ft-78ft

Overall

21290

Females

8396

F50-54

8396

15K→20K

9.3 - 12.4 mi

Top 74%
×5stories
+106ft-86ft

Overall

19693

Females

7494

F50-54

7494

20K→Half

12.4 - 13.1 mi

Top 76%
×2stories
+19ft-37ft

Overall

20227

Females

7798

F50-54

7798

Half→25K

13.1 - 15.5 mi

Top 74%
×4stories
+66ft-88ft

Overall

19725

Females

7547

F50-54

7547

25K→30K

15.5 - 18.6 mi

Top 78%
×9stories
+181ft-148ft

Overall

20730

Females

8185

F50-54

8185

30K→20M

18.6 - 20.0 mi

Top 70%
×5stories
+64ft-50ft

Overall

18714

Females

7146

F50-54

7146

20M→21M

20.0 - 21.0 mi

Top 72%
×8stories
+106ft-24ft

Overall

19165

Females

7445

F50-54

7445

21M→35K

21.0 - 21.8 mi

Top 75%
×7stories
+17ft-86ft

Overall

19975

Females

7919

F50-54

7919

35K→23M

21.8 - 23.0 mi

Top 72%
×5stories
+23ft-63ft

Overall

19155

Females

7503

F50-54

7503

23M→24M

23.0 - 24.0 mi

Top 73%
×6stories
+12ft-82ft

Overall

19351

Females

7641

F50-54

7641

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

19373

Females

7700

F50-54

7700

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

19938

Females

8027

F50-54

8027

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2stories
+22ft-21ft

Overall

21150

Females

8632

F50-54

8632

Passing Analysis

Category:
Athletes Passed
1467
Passed By
1542
Net Change
-75
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19998
5K → 10K117612-495#19998#20493
10K → 15K84353-269#20493#20762
15K → 20K33055+275#20762#20487
20K → Half3220+12#20487#20475
Half → 25K17651+125#20475#20350
25K → 30K131188-57#20350#20407
30K → 20M15723+134#20407#20273
20M → 21M11436+78#20273#20195
21M → 35K4931+18#20195#20177
35K → 23M11147+64#20177#20113
23M → 24M4826+22#20113#20091
24M → 40K5728+29#20091#20062
40K → 25.2M2413+11#20062#20051
25.2M → Finish3759-22#20051#20073
TOTALS14671542-75
📊

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