Boston Marathon logo
BOSTON MARATHON 2023

Emily Yochum

Bib: 11391•F

PA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 24%
Gender (Female)
#0 / 11423
Top 7%
Division (F18-39)
#0 / 4884
Top 13%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:20/mi
22:46
↑ 97↓ 3451.5%
10K· 6.21 mi
7:13/mi
45:12
↑ 79↓ 1380.4%
15K· 9.32 mi
7:13/mi
1:07:38
↑ 67↓ 78
20K· 12.43 mi
7:15/mi
1:30:09
↑ 106↓ 860.1%
Half· 13.11 mi
7:09/mi
1:35:02
↑ 19↓ 370.5%
25K· 15.53 mi
7:14/mi
1:52:34
↑ 66↓ 880.2%
30K· 18.64 mi
7:10/mi
2:14:51
↑ 181↓ 1480.2%
20M
7:13/mi
2:24:39
↑ 64↓ 500.2%
21M
7:45/mi
2:32:24
↑ 106↓ 241.6%
35K· 21.75 mi
7:10/mi
2:37:46
↑ 17↓ 861.7%
23M
7:25/mi
2:47:03
↑ 23↓ 630.6%
24M
7:11/mi
2:54:14
↓ 821.3%
40K· 24.85 mi
7:16/mi
3:00:27
↓ 200.3%
25.2M
7:50/mi
3:03:09
↑ 13↓ 160.2%
Finish· 26.22 mi
7:11/mi
3:10:28
↑ 22↓ 21

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⚖️ Balanced
Distance13.11 mi
Time1:35:02
Pace7:15 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:35:26
Pace7:17 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:4922:467:2022:46
7:20
-
10K
6.21 mi11:12:1545:127:1622:26
7:13
-0:07
15K
9.32 mi11:34:411:07:387:1522:26
7:13
0:00
20K
12.43 mi11:57:121:30:097:1522:31
7:15
+0:02
Half
13.11 mi12:02:051:35:027:154:53
7:09
-0:06
25K
15.53 mi12:19:371:52:347:1517:32
7:14
+0:05
30K
18.64 mi12:41:542:14:517:1422:17
7:10
-0:04
20M
20.00 mi12:51:422:24:397:149:48
7:13
+0:03
21M
21.00 mi12:59:272:32:247:157:45
7:45
+0:32
35K
21.75 mi13:04:492:37:467:155:22
7:10
-0:35
23M
23.00 mi13:14:062:47:037:169:17
7:25
+0:15
24M
24.00 mi13:21:172:54:147:167:11
7:11
-0:14
40K
24.85 mi13:27:303:00:277:166:13
7:16
+0:05
25.2M
25.20 mi13:30:123:03:097:162:42
7:50
+0:34
Finish
26.22 mi13:37:313:10:287:167:19
7:11
-0:39

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

7:09 /mi

Average Pace

7:16 /mi

Slowest Pace

7:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:00:01

95% of race

Time at Steady Pace

10:27

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:16 /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 mi10:49:4922:467:2022:46
7:20
#8309
10K
6.21 mi11:12:1545:127:1622:26
7:13
#8285
15K
9.32 mi11:34:411:07:387:1522:26
7:13
#8145
20K
12.43 mi11:57:121:30:097:1522:31
7:15
#7930
Half
13.11 mi12:02:051:35:027:154:53
7:09
#7902
25K
15.53 mi12:19:371:52:347:1517:32
7:14
#7700
30K
18.64 mi12:41:542:14:517:1422:17
7:10
#7194
20M
20.00 mi12:51:422:24:397:149:48
7:13
#7016
21M
21.00 mi12:59:272:32:247:157:45
7:45
#6914
35K
21.75 mi13:04:492:37:467:155:22
7:10
#6870
23M
23.00 mi13:14:062:47:037:169:17
7:25
#6767
24M
24.00 mi13:21:172:54:147:167:11
7:11
#6689
40K
24.85 mi13:27:303:00:277:166:13
7:16
#6587
25.2M
25.20 mi13:30:123:03:097:162:42
7:50
#6559
Finish
26.22 mi13:37:313:10:287:167:19
7:11
#6518
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8309112711277946(Top 30%)1049(Top 9%)1049(Top 21%)
10K6.21 mi3.10 mi8285+241133-61133-68263(Top 31%)1126(Top 10%)1126(Top 23%)
15K9.32 mi3.11 mi8145+1401089+441089+447946(Top 30%)1049(Top 9%)1049(Top 21%)
20K12.43 mi3.11 mi7930+2151027+621027+627420(Top 28%)905(Top 8%)905(Top 19%)
Half13.11 mi0.68 mi7902+281020+71020+77600(Top 29%)943(Top 8%)943(Top 19%)
25K15.53 mi2.42 mi7700+202967+53967+536867(Top 26%)796(Top 7%)796(Top 16%)
30K18.64 mi3.11 mi7194+506825+142825+1425356(Top 20%)471(Top 4%)471(Top 10%)
20M20.00 mi1.36 mi7016+178788+37788+375194(Top 20%)502(Top 4%)502(Top 10%)
21M21.00 mi1.00 mi6914+102775+13775+135930(Top 22%)779(Top 7%)779(Top 16%)
35K21.75 mi0.75 mi6870+44776-1776-16399(Top 24%)878(Top 8%)878(Top 18%)
23M23.00 mi1.25 mi6767+103770+6770+65970(Top 22%)799(Top 7%)799(Top 16%)
24M24.00 mi1.00 mi6689+78763+7763+75683(Top 21%)779(Top 7%)779(Top 16%)
40K24.85 mi0.85 mi6587+102756+7756+75288(Top 20%)747(Top 7%)747(Top 15%)
25.2M25.20 mi0.35 mi6559+28752+4752+45608(Top 21%)921(Top 8%)921(Top 19%)
Finish26.22 mi1.02 mi6518+41754-2754-26306(Top 24%)1163(Top 10%)1163(Top 24%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21story building
+97ft-345ft

Overall

7946

Females

1049

F18-39

1049

5K→10K

3.1 - 6.2 mi

Top 31%
×5story building
+79ft-138ft

Overall

8263

Females

1126

F18-39

1126

10K→15K

6.2 - 9.3 mi

Top 30%
×3story building
+67ft-78ft

Overall

7946

Females

1049

F18-39

1049

15K→20K

9.3 - 12.4 mi

Top 28%
×5story building
+106ft-86ft

Overall

7420

Females

905

F18-39

905

20K→Half

12.4 - 13.1 mi

Top 29%
×2story building
+19ft-37ft

Overall

7600

Females

943

F18-39

943

Half→25K

13.1 - 15.5 mi

Top 26%
×4story building
+66ft-88ft

Overall

6867

Females

796

F18-39

796

25K→30K

15.5 - 18.6 mi

Top 20%
×9story building
+181ft-148ft

Overall

5356

Females

471

F18-39

471

30K→20M

18.6 - 20.0 mi

Top 20%
×5story building
+64ft-50ft

Overall

5194

Females

502

F18-39

502

20M→21M

20.0 - 21.0 mi

Top 22%
×8story building
+106ft-24ft

Overall

5930

Females

779

F18-39

779

21M→35K

21.0 - 21.8 mi

Top 24%
×7story building
+17ft-86ft

Overall

6399

Females

878

F18-39

878

35K→23M

21.8 - 23.0 mi

Top 22%
×5story building
+23ft-63ft

Overall

5970

Females

799

F18-39

799

23M→24M

23.0 - 24.0 mi

Top 21%
×6story building
+12ft-82ft

Overall

5683

Females

779

F18-39

779

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5288

Females

747

F18-39

747

40K→25.2M

24.9 - 25.2 mi

Top 21%
×1story
+13ft-16ft

Overall

5608

Females

921

F18-39

921

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2story building
+22ft-21ft

Overall

6306

Females

1163

F18-39

1163

Passing Analysis

Category:
Athletes Passed
2246
Passed By
455
Net Change
+1791
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8309
5K → 10K239215+24#8309#8285
10K → 15K20969+140#8285#8145
15K → 20K24328+215#8145#7930
20K → Half3911+28#7930#7902
Half → 25K21513+202#7902#7700
25K → 30K5071+506#7700#7194
30K → 20M1835+178#7194#7016
20M → 21M11513+102#7016#6914
21M → 35K6117+44#6914#6870
35K → 23M12017+103#6870#6767
23M → 24M9012+78#6767#6689
24M → 40K11210+102#6689#6587
40K → 25.2M3810+28#6587#6559
25.2M → Finish7534+41#6559#6518
TOTALS2246455+1791
📊

Passing Visuals

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