Boston Marathon logo
BOSTON MARATHON 2023

Eileen Cody

Bib: 5372•F

PA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 20%
Gender (Female)
#0 / 11423
Top 4%
Division (F18-39)
#0 / 4884
Top 8%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:00
Rank: #4270
Start → 5K
21:00 | 6:46/mi
10K· 6.21 mi
42:23
Rank: #5138 (-868)
5K → 10K
21:23 | 6:53/mi
15K· 9.32 mi
1:03:40
Rank: #5280 (-142)
10K → 15K
21:17 | 6:51/mi
20K· 12.43 mi
1:24:49
Rank: #5083 (+197)
15K → 20K
21:09 | 6:48/mi
Half· 13.11 mi
1:29:22
Rank: #5020 (+63)
20K → Half
4:33 | 6:40/mi
25K· 15.53 mi
1:45:54
Rank: #4865 (+155)
Half → 25K
16:32 | 6:49/mi
30K· 18.64 mi
2:08:09
Rank: #4972 (-107)
25K → 30K
22:15 | 7:10/mi
20M
2:17:46
Rank: #4890 (+82)
30K → 20M
9:37 | 7:05/mi
21M
2:25:23
Rank: #4909 (-19)
20M → 21M
7:37 | 7:37/mi
35K· 21.75 mi
2:30:39
Rank: #4921 (-12)
21M → 35K
5:16 | 7:02/mi
23M
2:39:58
Rank: #4951 (-30)
35K → 23M
9:19 | 7:26/mi
24M
2:47:19
Rank: #4995 (-44)
23M → 24M
7:21 | 7:21/mi
40K· 24.85 mi
2:54:13
Rank: #5104 (-109)
24M → 40K
6:54 | 8:04/mi
25.2M
2:57:16
Rank: #5162 (-58)
40K → 25.2M
3:03 | 8:51/mi
Finish· 26.22 mi
3:05:10
Rank: #5291 (-129)
25.2M → Finish
7:54 | 7:45/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
Time1:29:22
Pace6:49 /mi
2nd Half
Distance13.11 mi
Time1:35:48
Pace7:18 /mi
📊Positive Split: 7.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:0721:006:4621:00
6:46
-
10K
6.21 mi10:45:3042:236:4921:23
6:53
+0:07
15K
9.32 mi11:06:471:03:406:5021:17
6:51
-0:02
20K
12.43 mi11:27:561:24:496:4921:09
6:48
-0:03
Half
13.11 mi11:32:291:29:226:494:33
6:40
-0:08
25K
15.53 mi11:49:011:45:546:4916:32
6:49
+0:09
30K
18.64 mi12:11:162:08:096:5222:15
7:10
+0:21
20M
20.00 mi12:20:532:17:466:539:37
7:05
-0:05
21M
21.00 mi12:28:302:25:236:557:37
7:37
+0:32
35K
21.75 mi12:33:462:30:396:565:16
7:02
-0:35
23M
23.00 mi12:43:052:39:586:579:19
7:26
+0:24
24M
24.00 mi12:50:262:47:196:587:21
7:21
-0:05
40K
24.85 mi12:57:202:54:137:016:54
8:04
+0:43
25.2M
25.20 mi13:00:232:57:167:023:03
8:51
+0:47
Finish
26.22 mi13:08:173:05:107:047:54
7:45
-1:06

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

6:40 /mi

Average Pace

7:04 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

25:33

14% of race

Time at Steady Pace

2:04:50

67% of race

Time at Slower Pace

34:47

19% of race

Average Pace: 7:04 /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 mi10:24:0721:006:4621:00
6:46
#4270
10K
6.21 mi10:45:3042:236:4921:23
6:53
#5138
15K
9.32 mi11:06:471:03:406:5021:17
6:51
#5280
20K
12.43 mi11:27:561:24:496:4921:09
6:48
#5083
Half
13.11 mi11:32:291:29:226:494:33
6:40
#5020
25K
15.53 mi11:49:011:45:546:4916:32
6:49
#4865
30K
18.64 mi12:11:162:08:096:5222:15
7:10
#4972
20M
20.00 mi12:20:532:17:466:539:37
7:05
#4890
21M
21.00 mi12:28:302:25:236:557:37
7:37
#4909
35K
21.75 mi12:33:462:30:396:565:16
7:02
#4921
23M
23.00 mi12:43:052:39:586:579:19
7:26
#4951
24M
24.00 mi12:50:262:47:196:587:21
7:21
#4995
40K
24.85 mi12:57:202:54:137:016:54
8:04
#5104
25.2M
25.20 mi13:00:232:57:167:023:03
8:51
#5162
Finish
26.22 mi13:08:173:05:107:047:54
7:45
#5291
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi42702732735588(Top 21%)445(Top 4%)445(Top 9%)
10K6.21 mi3.10 mi5138-868373-100373-1006017(Top 23%)534(Top 5%)534(Top 11%)
15K9.32 mi3.11 mi5280-142384-11384-115588(Top 21%)445(Top 4%)445(Top 9%)
20K12.43 mi3.11 mi5083+197360+24360+244528(Top 17%)304(Top 3%)304(Top 6%)
Half13.11 mi0.68 mi5020+63350+10350+104152(Top 16%)268(Top 2%)268(Top 5%)
25K15.53 mi2.42 mi4865+155337+13337+134347(Top 16%)291(Top 3%)291(Top 6%)
30K18.64 mi3.11 mi4972-107345-8345-85288(Top 20%)459(Top 4%)459(Top 9%)
20M20.00 mi1.36 mi4890+823453454508(Top 17%)367(Top 3%)367(Top 8%)
21M21.00 mi1.00 mi4909-19351-6351-65209(Top 20%)580(Top 5%)580(Top 12%)
35K21.75 mi0.75 mi4921-12354-3354-35583(Top 21%)633(Top 6%)633(Top 13%)
23M23.00 mi1.25 mi4951-30369-15369-156118(Top 23%)846(Top 7%)846(Top 17%)
24M24.00 mi1.00 mi4995-44394-25394-256737(Top 25%)1159(Top 10%)1159(Top 24%)
40K24.85 mi0.85 mi5104-109411-17411-1710514(Top 39%)2876(Top 25%)2876(Top 59%)
25.2M25.20 mi0.35 mi5162-58422-11422-1111578(Top 43%)3474(Top 30%)3474(Top 71%)
Finish26.22 mi1.02 mi5291-129451-29451-2910327(Top 39%)2844(Top 25%)2844(Top 58%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21stories
+97ft-345ft

Overall

5588

Females

445

F18-39

445

5K→10K

3.1 - 6.2 mi

Top 23%
×5stories
+79ft-138ft

Overall

6017

Females

534

F18-39

534

10K→15K

6.2 - 9.3 mi

Top 21%
×3stories
+67ft-78ft

Overall

5588

Females

445

F18-39

445

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4528

Females

304

F18-39

304

20K→Half

12.4 - 13.1 mi

Top 16%
×2stories
+19ft-37ft

Overall

4152

Females

268

F18-39

268

Half→25K

13.1 - 15.5 mi

Top 16%
×4stories
+66ft-88ft

Overall

4347

Females

291

F18-39

291

25K→30K

15.5 - 18.6 mi

Top 20%
×9stories
+181ft-148ft

Overall

5288

Females

459

F18-39

459

30K→20M

18.6 - 20.0 mi

Top 17%
×5stories
+64ft-50ft

Overall

4508

Females

367

F18-39

367

20M→21M

20.0 - 21.0 mi

Top 20%
×8stories
+106ft-24ft

Overall

5209

Females

580

F18-39

580

21M→35K

21.0 - 21.8 mi

Top 21%
×7stories
+17ft-86ft

Overall

5583

Females

633

F18-39

633

35K→23M

21.8 - 23.0 mi

Top 23%
×5stories
+23ft-63ft

Overall

6118

Females

846

F18-39

846

23M→24M

23.0 - 24.0 mi

Top 25%
×6stories
+12ft-82ft

Overall

6737

Females

1159

F18-39

1159

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

10514

Females

2876

F18-39

2876

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

11578

Females

3474

F18-39

3474

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2stories
+22ft-21ft

Overall

10327

Females

2844

F18-39

2844

Passing Analysis

Category:
Athletes Passed
1011
Passed By
2032
Net Change
-1021
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4270
5K → 10K27895-868#4270#5138
10K → 15K60202-142#5138#5280
15K → 20K23134+197#5280#5083
20K → Half674+63#5083#5020
Half → 25K18530+155#5020#4865
25K → 30K103210-107#4865#4972
30K → 20M10624+82#4972#4890
20M → 21M5574-19#4890#4909
21M → 35K3345-12#4909#4921
35K → 23M6696-30#4921#4951
23M → 24M3579-44#4951#4995
24M → 40K19128-109#4995#5104
40K → 25.2M765-58#5104#5162
25.2M → Finish17146-129#5162#5291
TOTALS10112032-1021
📊

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