Boston Marathon logo
BOSTON MARATHON 2023

Joanna Gardner

Bib: 15273•F

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 50%
Gender (Female)
#0 / 11423
Top 34%
Division (F18-39)
#0 / 4884
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
7:39/mi
23:46
↑ 97↓ 3451.5%
10K· 6.21 mi
7:40/mi
47:35
↑ 79↓ 1380.4%
15K· 9.32 mi
7:41/mi
1:11:27
↑ 67↓ 78
20K· 12.43 mi
8:05/mi
1:36:34
↑ 106↓ 860.1%
Half· 13.11 mi
7:39/mi
1:41:47
↑ 19↓ 370.5%
25K· 15.53 mi
8:03/mi
2:01:19
↑ 66↓ 880.2%
30K· 18.64 mi
8:40/mi
2:28:14
↑ 181↓ 1480.2%
20M
8:48/mi
2:40:12
↑ 64↓ 500.2%
21M
9:46/mi
2:49:58
↑ 106↓ 241.6%
35K· 21.75 mi
8:32/mi
2:56:21
↑ 17↓ 861.7%
23M
9:02/mi
3:07:40
↑ 23↓ 630.6%
24M
8:02/mi
3:15:42
↓ 821.3%
40K· 24.85 mi
8:25/mi
3:22:54
↓ 200.3%
25.2M
9:37/mi
3:26:13
↑ 13↓ 160.2%
Finish· 26.22 mi
7:28/mi
3:33:50
↑ 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
Time1:41:47
Pace7:46 /mi
2nd Half
Distance13.11 mi
Time1:52:03
Pace8:33 /mi
📊Positive Split: 10.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:1523:467:3923:46
7:39
-
10K
6.21 mi11:17:0447:357:3923:49
7:40
+0:01
15K
9.32 mi11:40:561:11:277:4023:52
7:41
+0:01
20K
12.43 mi12:06:031:36:347:4625:07
8:05
+0:24
Half
13.11 mi12:11:161:41:477:465:13
7:39
-0:26
25K
15.53 mi12:30:482:01:197:4919:32
8:03
+0:24
30K
18.64 mi12:57:432:28:147:5726:55
8:40
+0:37
20M
20.00 mi13:09:412:40:128:0111:58
8:48
+0:08
21M
21.00 mi13:19:272:49:588:069:46
9:46
+0:58
35K
21.75 mi13:25:502:56:218:076:23
8:32
-1:14
23M
23.00 mi13:37:093:07:408:1011:19
9:02
+0:30
24M
24.00 mi13:45:113:15:428:098:02
8:02
-1:00
40K
24.85 mi13:52:233:22:548:107:12
8:25
+0:23
25.2M
25.20 mi13:55:423:26:138:113:19
9:37
+1:12
Finish
26.22 mi14:03:193:33:508:107:37
7:28
-2:09

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

7:28 /mi

Average Pace

8:10 /mi

Slowest Pace

9:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:24:17

39% of race

Time at Steady Pace

59:53

28% of race

Time at Slower Pace

1:09:40

33% of race

Average Pace: 8:09 /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 mi10:53:1523:467:3923:46
7:39
#11042
10K
6.21 mi11:17:0447:357:3923:49
7:40
#11426
15K
9.32 mi11:40:561:11:277:4023:52
7:41
#11505
20K
12.43 mi12:06:031:36:347:4625:07
8:05
#12133
Half
13.11 mi12:11:161:41:477:465:13
7:39
#12094
25K
15.53 mi12:30:482:01:197:4919:32
8:03
#12267
30K
18.64 mi12:57:432:28:147:5726:55
8:40
#12921
20M
20.00 mi13:09:412:40:128:0111:58
8:48
#13127
21M
21.00 mi13:19:272:49:588:069:46
9:46
#13401
35K
21.75 mi13:25:502:56:218:076:23
8:32
#13482
23M
23.00 mi13:37:093:07:408:1011:19
9:02
#13661
24M
24.00 mi13:45:113:15:428:098:02
8:02
#13530
40K
24.85 mi13:52:233:22:548:107:12
8:25
#13480
25.2M
25.20 mi13:55:423:26:138:113:19
9:37
#13516
Finish
26.22 mi14:03:193:33:508:107:37
7:28
#13290
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi110422355235511727(Top 44%)2752(Top 24%)2752(Top 56%)
10K6.21 mi3.10 mi11426-3842566-2112566-21111968(Top 45%)2855(Top 25%)2855(Top 58%)
15K9.32 mi3.11 mi11505-792608-422608-4211727(Top 44%)2752(Top 24%)2752(Top 56%)
20K12.43 mi3.11 mi12133-6282999-3912999-39114128(Top 53%)4178(Top 37%)4178(Top 86%)
Half13.11 mi0.68 mi12094+392975+242975+2411514(Top 43%)2655(Top 23%)2655(Top 54%)
25K15.53 mi2.42 mi12267-1733096-1213096-12113209(Top 50%)3752(Top 33%)3752(Top 77%)
30K18.64 mi3.11 mi12921-6543501-4053501-40515298(Top 57%)5113(Top 45%)5113(Top 105%)
20M20.00 mi1.36 mi13127-2063639-1383639-13815458(Top 58%)5244(Top 46%)5244(Top 107%)
21M21.00 mi1.00 mi13401-2743818-1793818-17917119(Top 64%)6254(Top 55%)6254(Top 128%)
35K21.75 mi0.75 mi13482-813874-563874-5615483(Top 58%)5389(Top 47%)5389(Top 110%)
23M23.00 mi1.25 mi13661-1794014-1404014-14016241(Top 61%)5868(Top 51%)5868(Top 120%)
24M24.00 mi1.00 mi13530+1313958+563958+5611514(Top 43%)3345(Top 29%)3345(Top 68%)
40K24.85 mi0.85 mi13480+503948+103948+1012867(Top 48%)4140(Top 36%)4140(Top 85%)
25.2M25.20 mi0.35 mi13516-363979-313979-3115752(Top 59%)5708(Top 50%)5708(Top 117%)
Finish26.22 mi1.02 mi13290+2263872+1073872+1078411(Top 32%)2012(Top 18%)2012(Top 41%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21story building
+97ft-345ft

Overall

11727

Females

2752

F18-39

2752

5K→10K

3.1 - 6.2 mi

Top 45%
×5story building
+79ft-138ft

Overall

11968

Females

2855

F18-39

2855

10K→15K

6.2 - 9.3 mi

Top 44%
×3story building
+67ft-78ft

Overall

11727

Females

2752

F18-39

2752

15K→20K

9.3 - 12.4 mi

Top 53%
×5story building
+106ft-86ft

Overall

14128

Females

4178

F18-39

4178

20K→Half

12.4 - 13.1 mi

Top 43%
×2story building
+19ft-37ft

Overall

11514

Females

2655

F18-39

2655

Half→25K

13.1 - 15.5 mi

Top 50%
×4story building
+66ft-88ft

Overall

13209

Females

3752

F18-39

3752

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

15298

Females

5113

F18-39

5113

30K→20M

18.6 - 20.0 mi

Top 58%
×5story building
+64ft-50ft

Overall

15458

Females

5244

F18-39

5244

20M→21M

20.0 - 21.0 mi

Top 64%
×8story building
+106ft-24ft

Overall

17119

Females

6254

F18-39

6254

21M→35K

21.0 - 21.8 mi

Top 58%
×7story building
+17ft-86ft

Overall

15483

Females

5389

F18-39

5389

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

16241

Females

5868

F18-39

5868

23M→24M

23.0 - 24.0 mi

Top 43%
×6story building
+12ft-82ft

Overall

11514

Females

3345

F18-39

3345

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

12867

Females

4140

F18-39

4140

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

15752

Females

5708

F18-39

5708

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2story building
+22ft-21ft

Overall

8411

Females

2012

F18-39

2012

Passing Analysis

Category:
Athletes Passed
1168
Passed By
3416
Net Change
-2248
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11042
5K → 10K153537-384#11042#11426
10K → 15K157236-79#11426#11505
15K → 20K39667-628#11505#12133
20K → Half489+39#12133#12094
Half → 25K74247-173#12094#12267
25K → 30K61715-654#12267#12921
30K → 20M41247-206#12921#13127
20M → 21M29303-274#13127#13401
21M → 35K32113-81#13401#13482
35K → 23M42221-179#13482#13661
23M → 24M14514+131#13661#13530
24M → 40K8939+50#13530#13480
40K → 25.2M2359-36#13480#13516
25.2M → Finish2359+226#13516#13290
TOTALS11683416-2248
📊

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