Boston Marathon logo
BOSTON MARATHON 2023

Rosemary Mckissock

Bib: 9096 F GB

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 15%
Gender (Female)
#0 / 11423
Top 2%
Masters (Masters Women)
#0 / 6539
Top 0.6%
Division (F40-44)
#0 / 1878
Top 2%
Race Day Weather
49°/39°F
light intensity drizzle

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
6:44/mi
20:56
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
6:45/mi
41:53
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
6:47/mi
1:02:56
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
6:45/mi
1:23:53
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
6:36/mi
1:28:23
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
6:49/mi
1:44:54
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
6:59/mi
2:06:36
↑ 181↓ 1480.2%
138 ft elev
20M
6:59/mi
2:16:06
↑ 64↓ 500.2%
148 ft elev
21M
7:18/mi
2:23:24
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
6:41/mi
2:28:24
↑ 17↓ 861.7%
156 ft elev
23M
6:55/mi
2:37:03
↑ 23↓ 630.6%
116 ft elev
24M
6:44/mi
2:43:47
↓ 821.3%
34 ft elev
40K· 24.85 mi
6:54/mi
2:49:41
↓ 200.3%
20 ft elev
25.2M
7:24/mi
2:52:14
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
6:43/mi
2:59:05
↑ 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
1:28:236:45 /mi⚡ faster
2nd Half
1:30:426:55 /mi+2.6%
Positive split — 2.6% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
20:566:443.11 mi20:56
6:44
-
10K
41:536:443.10 mi20:57
6:45
+0:01
15K
1:02:566:453.11 mi21:03
6:47
+0:02
20K
1:23:536:453.11 mi20:57
6:45
-0:02
Half(13.11 mi)
1:28:236:450.68 mi4:30
6:36
-0:09
25K
1:44:546:452.42 mi16:31
6:49
+0:13
30K
2:06:366:473.11 mi21:42
6:59
+0:10
20M
2:16:066:481.36 mi9:30
6:59
0:00
21M
2:23:246:501.00 mi7:18
7:18
+0:19
35K
2:28:246:490.75 mi5:00
6:41
-0:37
23M
2:37:036:501.25 mi8:39
6:55
+0:14
24M
2:43:476:491.00 mi6:44
6:44
-0:11
40K
2:49:416:500.85 mi5:54
6:54
+0:10
25.2M
2:52:146:500.35 mi2:33
7:24
+0:30
Finish(26.22 mi)
2:59:056:501.02 mi6:51
6:43
-0:41
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

6:36 /mi

Average Pace

6:50 /mi

Slowest Pace

7:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:49:14

94% of race

Time at Steady Pace

9:51

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:50 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi40352452454894337337
10K3.10 mi4392-357274-29274-294774332332
15K3.11 mi4539-147295-21295-214894337337
20K3.11 mi4351+188274+21274+213942227227
Half(13.11 mi)0.68 mi4284+67268+6268+63485185185
25K2.42 mi4249+35261+7261+74276274274
30K3.11 mi4242+7259+2259+24260288288
20M1.36 mi4207+35257+2257+23999285285
21M1.00 mi4131+76254+3254+33639261261
35K0.75 mi4082+49251+3251+33519251251
23M1.25 mi4006+76246+5246+53323237237
24M1.00 mi3964+42248-2248-23324252252
40K0.85 mi3914+50247+1247+13362285285
25.2M0.35 mi3895+19240+7240+73465328328
Finish(26.22 mi)1.02 mi3883+12238+2238+23666390390

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21story building
+97ft-345ft

Overall

4894

Females

337

F40-44

337

5K→10K

3.1 - 6.2 mi

Top 18%
×5story building
+79ft-138ft

Overall

4774

Females

332

F40-44

332

10K→15K

6.2 - 9.3 mi

Top 18%
×3story building
+67ft-78ft

Overall

4894

Females

337

F40-44

337

15K→20K

9.3 - 12.4 mi

Top 15%
×5story building
+106ft-86ft

Overall

3942

Females

227

F40-44

227

20K→Half

12.4 - 13.1 mi

Top 13%
×2story building
+19ft-37ft

Overall

3485

Females

185

F40-44

185

Half→25K

13.1 - 15.5 mi

Top 16%
×4story building
+66ft-88ft

Overall

4276

Females

274

F40-44

274

25K→30K

15.5 - 18.6 mi

Top 16%
×9story building
+181ft-148ft

Overall

4260

Females

288

F40-44

288

30K→20M

18.6 - 20.0 mi

Top 15%
×5story building
+64ft-50ft

Overall

3999

Females

285

F40-44

285

20M→21M

20.0 - 21.0 mi

Top 14%
×8story building
+106ft-24ft

Overall

3639

Females

261

F40-44

261

21M→35K

21.0 - 21.8 mi

Top 13%
×7story building
+17ft-86ft

Overall

3519

Females

251

F40-44

251

35K→23M

21.8 - 23.0 mi

Top 12%
×5story building
+23ft-63ft

Overall

3323

Females

237

F40-44

237

23M→24M

23.0 - 24.0 mi

Top 12%
×6story building
+12ft-82ft

Overall

3324

Females

252

F40-44

252

24M→40K

24.0 - 24.9 mi

Top 13%
×1story
+6ft-20ft

Overall

3362

Females

285

F40-44

285

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3465

Females

328

F40-44

328

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2story building
+22ft-21ft

Overall

3666

Females

390

F40-44

390

Passing Analysis

Category:
Passed
1264
Passed By
1112
Net Change
+152
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4035
5K → 10K98455-357#4035#4392
10K → 15K75222-147#4392#4539
15K → 20K21527+188#4539#4351
20K → Half692+67#4351#4284
Half → 25K10873+35#4284#4249
25K → 30K122115+7#4249#4242
30K → 20M7742+35#4242#4207
20M → 21M10529+76#4207#4131
21M → 35K6011+49#4131#4082
35K → 23M10428+76#4082#4006
23M → 24M6927+42#4006#3964
24M → 40K7020+50#3964#3914
40K → 25.2M4021+19#3914#3895
25.2M → Finish5240+12#3895#3883
TOTALS12641112+152

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