Boston Marathon logo
BOSTON MARATHON 2024

Yumi Dempsey

Bib: 22245•F

FL

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 25550
Top 50%
Gender (Female)
#0 / 10924
Top 38%
Masters (Masters Women)
#0 / 6263
Top 26%
Division (F50-54)
#0 / 1187
Top 19%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:57
Rank: #18704
Start → 5K
26:57 | 8:40/mi
10K· 6.21 mi
53:22
Rank: #18009 (+695)
5K → 10K
26:25 | 8:30/mi
15K· 9.32 mi
1:19:07
Rank: #17007 (+1002)
10K → 15K
25:45 | 8:17/mi
20K· 12.43 mi
1:45:20
Rank: #16282 (+725)
15K → 20K
26:13 | 8:26/mi
Half· 13.11 mi
1:51:00
Rank: #16170 (+112)
20K → Half
5:40 | 8:18/mi
25K· 15.53 mi
2:11:26
Rank: #15565 (+605)
Half → 25K
20:26 | 8:26/mi
30K· 18.64 mi
2:38:15
Rank: #14755 (+810)
25K → 30K
26:49 | 8:38/mi
20M
2:49:55
Rank: #14350 (+405)
30K → 20M
11:40 | 8:35/mi
21M
2:58:37
Rank: #13895 (+455)
20M → 21M
8:42 | 8:42/mi
35K· 21.75 mi
3:04:57
Rank: #13695 (+200)
21M → 35K
6:20 | 8:28/mi
23M
3:15:54
Rank: #13462 (+233)
35K → 23M
10:57 | 8:45/mi
24M
3:24:21
Rank: #13219 (+243)
23M → 24M
8:27 | 8:27/mi
40K· 24.85 mi
3:31:44
Rank: #13031 (+188)
24M → 40K
7:23 | 8:38/mi
25.2M
3:34:57
Rank: #12907 (+124)
40K → 25.2M
3:13 | 9:20/mi
Finish· 26.22 mi
3:43:12
Rank: #12715 (+192)
25.2M → Finish
8:15 | 8:06/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
Time1:51:00
Pace8:28 /mi
2nd Half
Distance13.11 mi
Time1:52:12
Pace8:34 /mi
📊Positive Split: 1.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:4226:578:4026:57
8:40
-
10K
6.21 mi11:52:0753:228:3526:25
8:30
-0:10
15K
9.32 mi12:17:521:19:078:2925:45
8:17
-0:13
20K
12.43 mi12:44:051:45:208:2926:13
8:26
+0:09
Half
13.11 mi12:49:451:51:008:285:40
8:18
-0:08
25K
15.53 mi13:10:112:11:268:2820:26
8:26
+0:08
30K
18.64 mi13:37:002:38:158:2926:49
8:38
+0:12
20M
20.00 mi13:48:402:49:558:3011:40
8:35
-0:03
21M
21.00 mi13:57:222:58:378:308:42
8:42
+0:07
35K
21.75 mi14:03:423:04:578:306:20
8:28
-0:14
23M
23.00 mi14:14:393:15:548:3110:57
8:45
+0:17
24M
24.00 mi14:23:063:24:218:318:27
8:27
-0:18
40K
24.85 mi14:30:293:31:448:317:23
8:38
+0:11
25.2M
25.20 mi14:33:423:34:578:323:13
9:20
+0:42
Finish
26.22 mi14:41:573:43:128:318:15
8:06
-1:14

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

8:06 /mi

Average Pace

8:31 /mi

Slowest Pace

9:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:39:59

99% of race

Time at Steady Pace

3:13

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:31 /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 mi11:25:4226:578:4026:57
8:40
#18704
10K
6.21 mi11:52:0753:228:3526:25
8:30
#18009
15K
9.32 mi12:17:521:19:078:2925:45
8:17
#17007
20K
12.43 mi12:44:051:45:208:2926:13
8:26
#16282
Half
13.11 mi12:49:451:51:008:285:40
8:18
#16170
25K
15.53 mi13:10:112:11:268:2820:26
8:26
#15565
30K
18.64 mi13:37:002:38:158:2926:49
8:38
#14755
20M
20.00 mi13:48:402:49:558:3011:40
8:35
#14350
21M
21.00 mi13:57:222:58:378:308:42
8:42
#13895
35K
21.75 mi14:03:423:04:578:306:20
8:28
#13695
23M
23.00 mi14:14:393:15:548:3110:57
8:45
#13462
24M
24.00 mi14:23:063:24:218:318:27
8:27
#13219
40K
24.85 mi14:30:293:31:448:317:23
8:38
#13031
25.2M
25.20 mi14:33:423:34:578:323:13
9:20
#12907
Finish
26.22 mi14:41:573:43:128:318:15
8:06
#12715
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi187047164716415208(Top 60%)5087(Top 47%)5087(Top 429%)
10K6.21 mi3.10 mi18009+6956745+4196745+41917293(Top 68%)6300(Top 58%)6300(Top 531%)
15K9.32 mi3.11 mi17007+10026146+5996146+59915208(Top 60%)5087(Top 47%)5087(Top 429%)
20K12.43 mi3.11 mi16282+7255735+4115735+41114482(Top 57%)4707(Top 43%)4707(Top 397%)
Half13.11 mi0.68 mi16170+1125680+555680+5514641(Top 57%)4825(Top 44%)4825(Top 406%)
25K15.53 mi2.42 mi15565+6055342+3385342+33812678(Top 50%)3873(Top 35%)3873(Top 326%)
30K18.64 mi3.11 mi14755+8104926+4164926+41611357(Top 44%)3375(Top 31%)3375(Top 284%)
20M20.00 mi1.36 mi14350+4054732+1944732+1949945(Top 39%)2927(Top 27%)2927(Top 247%)
21M21.00 mi1.00 mi13895+4554540+1924540+1927188(Top 28%)1815(Top 17%)1815(Top 153%)
35K21.75 mi0.75 mi13695+2004455+854455+8510582(Top 41%)3542(Top 32%)3542(Top 298%)
23M23.00 mi1.25 mi13462+2334388+674388+679835(Top 38%)3314(Top 30%)3314(Top 279%)
24M24.00 mi1.00 mi13219+2434303+854303+859205(Top 36%)3049(Top 28%)3049(Top 257%)
40K24.85 mi0.85 mi13031+1884240+634240+639092(Top 36%)3134(Top 29%)3134(Top 264%)
25.2M25.20 mi0.35 mi12907+1244192+484192+488109(Top 32%)2732(Top 25%)2732(Top 230%)
Finish26.22 mi1.02 mi12715+1924131+614131+619187(Top 36%)3150(Top 29%)3150(Top 265%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21stories
+97ft-345ft

Overall

15208

Females

5087

F50-54

5087

5K→10K

3.1 - 6.2 mi

Top 68%
×5stories
+79ft-138ft

Overall

17293

Females

6300

F50-54

6300

10K→15K

6.2 - 9.3 mi

Top 60%
×3stories
+67ft-78ft

Overall

15208

Females

5087

F50-54

5087

15K→20K

9.3 - 12.4 mi

Top 57%
×5stories
+106ft-86ft

Overall

14482

Females

4707

F50-54

4707

20K→Half

12.4 - 13.1 mi

Top 57%
×2stories
+19ft-37ft

Overall

14641

Females

4825

F50-54

4825

Half→25K

13.1 - 15.5 mi

Top 50%
×4stories
+66ft-88ft

Overall

12678

Females

3873

F50-54

3873

25K→30K

15.5 - 18.6 mi

Top 44%
×9stories
+181ft-148ft

Overall

11357

Females

3375

F50-54

3375

30K→20M

18.6 - 20.0 mi

Top 39%
×5stories
+64ft-50ft

Overall

9945

Females

2927

F50-54

2927

20M→21M

20.0 - 21.0 mi

Top 28%
×8stories
+106ft-24ft

Overall

7188

Females

1815

F50-54

1815

21M→35K

21.0 - 21.8 mi

Top 41%
×7stories
+17ft-86ft

Overall

10582

Females

3542

F50-54

3542

35K→23M

21.8 - 23.0 mi

Top 38%
×5stories
+23ft-63ft

Overall

9835

Females

3314

F50-54

3314

23M→24M

23.0 - 24.0 mi

Top 36%
×6stories
+12ft-82ft

Overall

9205

Females

3049

F50-54

3049

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

9092

Females

3134

F50-54

3134

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8109

Females

2732

F50-54

2732

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2stories
+22ft-21ft

Overall

9187

Females

3150

F50-54

3150

Passing Analysis

Category:
Athletes Passed
6166
Passed By
177
Net Change
+5989
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18704
5K → 10K76065+695#18704#18009
10K → 15K101311+1002#18009#17007
15K → 20K73813+725#17007#16282
20K → Half1186+112#16282#16170
Half → 25K6094+605#16170#15565
25K → 30K8199+810#15565#14755
30K → 20M4094+405#14755#14350
20M → 21M4550+455#14350#13895
21M → 35K2055+200#13895#13695
35K → 23M25522+233#13695#13462
23M → 24M25714+243#13462#13219
24M → 40K1979+188#13219#13031
40K → 25.2M1295+124#13031#12907
25.2M → Finish20210+192#12907#12715
TOTALS6166177+5989
📊

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