Boston Marathon logo
BOSTON MARATHON 2023

Elaina Clancy

Bib: 11722•F

TX

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 25%
Gender (Female)
#0 / 11423
Top 7%
Division (F18-39)
#0 / 4884
Top 14%
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
7:06/mi
22:05
↑ 97↓ 3451.5%
10K· 6.21 mi
7:05/mi
44:06
↑ 79↓ 1380.4%
15K· 9.32 mi
7:09/mi
1:06:18
↑ 67↓ 78
20K· 12.43 mi
7:11/mi
1:28:37
↑ 106↓ 860.1%
Half· 13.11 mi
7:08/mi
1:33:29
↑ 19↓ 370.5%
25K· 15.53 mi
7:16/mi
1:51:07
↑ 66↓ 880.2%
30K· 18.64 mi
7:28/mi
2:14:20
↑ 181↓ 1480.2%
20M
7:31/mi
2:24:33
↑ 64↓ 500.2%
21M
7:50/mi
2:32:23
↑ 106↓ 241.6%
35K· 21.75 mi
7:09/mi
2:37:44
↑ 17↓ 861.7%
23M
7:27/mi
2:47:04
↑ 23↓ 630.6%
24M
7:33/mi
2:54:37
↓ 821.3%
40K· 24.85 mi
7:45/mi
3:01:15
↓ 200.3%
25.2M
8:13/mi
3:04:05
↑ 13↓ 160.2%
Finish· 26.22 mi
7:19/mi
3:11:32
↑ 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 HalfFaster
Distance13.11 mi
Time1:33:29
Pace7:08 /mi
2nd Half
Distance13.11 mi
Time1:38:03
Pace7:29 /mi
📊Positive Split: 4.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:4922:057:0622:05
7:06
-
10K
6.21 mi11:10:5044:067:0622:01
7:05
-0:01
15K
9.32 mi11:33:021:06:187:0722:12
7:09
+0:04
20K
12.43 mi11:55:211:28:377:0822:19
7:11
+0:02
Half
13.11 mi12:00:131:33:297:084:52
7:08
-0:03
25K
15.53 mi12:17:511:51:077:0917:38
7:16
+0:08
30K
18.64 mi12:41:042:14:207:1223:13
7:28
+0:12
20M
20.00 mi12:51:172:24:337:1410:13
7:31
+0:03
21M
21.00 mi12:59:072:32:237:157:50
7:50
+0:19
35K
21.75 mi13:04:282:37:447:155:21
7:09
-0:41
23M
23.00 mi13:13:482:47:047:169:20
7:27
+0:18
24M
24.00 mi13:21:212:54:377:177:33
7:33
+0:06
40K
24.85 mi13:27:593:01:157:186:38
7:45
+0:12
25.2M
25.20 mi13:30:493:04:057:182:50
8:13
+0:28
Finish
26.22 mi13:38:163:11:327:197:27
7:19
-0:54

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

7:05 /mi

Average Pace

7:19 /mi

Slowest Pace

8:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:00:52

94% of race

Time at Steady Pace

10:40

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:18 /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 mi10:48:4922:057:0622:05
7:06
#6931
10K
6.21 mi11:10:5044:067:0622:01
7:05
#7090
15K
9.32 mi11:33:021:06:187:0722:12
7:09
#7188
20K
12.43 mi11:55:211:28:377:0822:19
7:11
#7102
Half
13.11 mi12:00:131:33:297:084:52
7:08
#7125
25K
15.53 mi12:17:511:51:077:0917:38
7:16
#7078
30K
18.64 mi12:41:042:14:207:1223:13
7:28
#7024
20M
20.00 mi12:51:172:24:337:1410:13
7:31
#6990
21M
21.00 mi12:59:072:32:237:157:50
7:50
#6909
35K
21.75 mi13:04:282:37:447:155:21
7:09
#6862
23M
23.00 mi13:13:482:47:047:169:20
7:27
#6772
24M
24.00 mi13:21:212:54:377:177:33
7:33
#6792
40K
24.85 mi13:27:593:01:157:186:38
7:45
#6801
25.2M
25.20 mi13:30:493:04:057:182:50
8:13
#6792
Finish
26.22 mi13:38:163:11:327:197:27
7:19
#6783
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi69317057057455(Top 28%)879(Top 8%)879(Top 18%)
10K6.21 mi3.10 mi7090-159756-51756-517372(Top 28%)851(Top 7%)851(Top 17%)
15K9.32 mi3.11 mi7188-98789-33789-337455(Top 28%)879(Top 8%)879(Top 18%)
20K12.43 mi3.11 mi7102+86771+18771+187001(Top 26%)780(Top 7%)780(Top 16%)
Half13.11 mi0.68 mi7125-23774-3774-37437(Top 28%)894(Top 8%)894(Top 18%)
25K15.53 mi2.42 mi7078+47778-4778-47128(Top 27%)879(Top 8%)879(Top 18%)
30K18.64 mi3.11 mi7024+54783-5783-57047(Top 26%)937(Top 8%)937(Top 19%)
20M20.00 mi1.36 mi6990+34780+3780+36930(Top 26%)998(Top 9%)998(Top 20%)
21M21.00 mi1.00 mi6909+81773+7773+76361(Top 24%)899(Top 8%)899(Top 18%)
35K21.75 mi0.75 mi6862+47771+2771+26260(Top 24%)841(Top 7%)841(Top 17%)
23M23.00 mi1.25 mi6772+90772-1772-16191(Top 23%)877(Top 8%)877(Top 18%)
24M24.00 mi1.00 mi6792-20795-23795-238056(Top 30%)1689(Top 15%)1689(Top 35%)
40K24.85 mi0.85 mi6801-9820-25820-258402(Top 32%)1892(Top 17%)1892(Top 39%)
25.2M25.20 mi0.35 mi6792+9823-3823-37811(Top 29%)1723(Top 15%)1723(Top 35%)
Finish26.22 mi1.02 mi6783+9833-10833-107211(Top 27%)1504(Top 13%)1504(Top 31%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21story building
+97ft-345ft

Overall

7455

Females

879

F18-39

879

5K→10K

3.1 - 6.2 mi

Top 28%
×5story building
+79ft-138ft

Overall

7372

Females

851

F18-39

851

10K→15K

6.2 - 9.3 mi

Top 28%
×3story building
+67ft-78ft

Overall

7455

Females

879

F18-39

879

15K→20K

9.3 - 12.4 mi

Top 26%
×5story building
+106ft-86ft

Overall

7001

Females

780

F18-39

780

20K→Half

12.4 - 13.1 mi

Top 28%
×2story building
+19ft-37ft

Overall

7437

Females

894

F18-39

894

Half→25K

13.1 - 15.5 mi

Top 27%
×4story building
+66ft-88ft

Overall

7128

Females

879

F18-39

879

25K→30K

15.5 - 18.6 mi

Top 26%
×9story building
+181ft-148ft

Overall

7047

Females

937

F18-39

937

30K→20M

18.6 - 20.0 mi

Top 26%
×5story building
+64ft-50ft

Overall

6930

Females

998

F18-39

998

20M→21M

20.0 - 21.0 mi

Top 24%
×8story building
+106ft-24ft

Overall

6361

Females

899

F18-39

899

21M→35K

21.0 - 21.8 mi

Top 24%
×7story building
+17ft-86ft

Overall

6260

Females

841

F18-39

841

35K→23M

21.8 - 23.0 mi

Top 23%
×5story building
+23ft-63ft

Overall

6191

Females

877

F18-39

877

23M→24M

23.0 - 24.0 mi

Top 30%
×6story building
+12ft-82ft

Overall

8056

Females

1689

F18-39

1689

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

8402

Females

1892

F18-39

1892

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

7811

Females

1723

F18-39

1723

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2story building
+22ft-21ft

Overall

7211

Females

1504

F18-39

1504

Passing Analysis

Category:
Athletes Passed
1172
Passed By
1024
Net Change
+148
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6931
5K → 10K137296-159#6931#7090
10K → 15K97195-98#7090#7188
15K → 20K14559+86#7188#7102
20K → Half730-23#7102#7125
Half → 25K11063+47#7125#7078
25K → 30K14692+54#7078#7024
30K → 20M6834+34#7024#6990
20M → 21M10019+81#6990#6909
21M → 35K6013+47#6909#6862
35K → 23M11525+90#6862#6772
23M → 24M4767-20#6772#6792
24M → 40K5059-9#6792#6801
40K → 25.2M3324+9#6801#6792
25.2M → Finish5748+9#6792#6783
TOTALS11721024+148
📊

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