Boston Marathon logo
BOSTON MARATHON 2023

Emily Daly

Bib: 26667•F

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 38%
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
7:43/mi
23:58
↑ 97↓ 3451.5%
10K· 6.21 mi
8:00/mi
48:48
↑ 79↓ 1380.4%
15K· 9.32 mi
7:54/mi
1:13:20
↑ 67↓ 78
20K· 12.43 mi
7:53/mi
1:37:49
↑ 106↓ 860.1%
Half· 13.11 mi
7:58/mi
1:43:15
↑ 19↓ 370.5%
25K· 15.53 mi
8:09/mi
2:03:00
↑ 66↓ 880.2%
30K· 18.64 mi
8:28/mi
2:29:19
↑ 181↓ 1480.2%
20M
8:54/mi
2:41:24
↑ 64↓ 500.2%
21M
10:33/mi
2:51:57
↑ 106↓ 241.6%
35K· 21.75 mi
9:08/mi
2:58:47
↑ 17↓ 861.7%
23M
8:35/mi
3:09:32
↑ 23↓ 630.6%
24M
8:03/mi
3:17:35
↓ 821.3%
40K· 24.85 mi
8:11/mi
3:24:35
↓ 200.3%
25.2M
9:54/mi
3:28:00
↑ 13↓ 160.2%
Finish· 26.22 mi
8:11/mi
3:36:20
↑ 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
Time1:43:15
Pace7:53 /mi
2nd Half
Distance13.11 mi
Time1:53:05
Pace8:38 /mi
📊Positive Split: 9.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:40:0823:587:4323:58
7:43
-
10K
6.21 mi12:04:5848:487:5124:50
8:00
+0:17
15K
9.32 mi12:29:301:13:207:5224:32
7:54
-0:06
20K
12.43 mi12:53:591:37:497:5224:29
7:53
-0:01
Half
13.11 mi12:59:251:43:157:535:26
7:58
+0:05
25K
15.53 mi13:19:102:03:007:5519:45
8:09
+0:11
30K
18.64 mi13:45:292:29:198:0126:19
8:28
+0:19
20M
20.00 mi13:57:342:41:248:0412:05
8:54
+0:26
21M
21.00 mi14:08:072:51:578:1110:33
10:33
+1:39
35K
21.75 mi14:14:572:58:478:136:50
9:08
-1:25
23M
23.00 mi14:25:423:09:328:1410:45
8:35
-0:33
24M
24.00 mi14:33:453:17:358:148:03
8:03
-0:32
40K
24.85 mi14:40:453:24:358:147:00
8:11
+0:08
25.2M
25.20 mi14:44:103:28:008:153:25
9:54
+1:43
Finish
26.22 mi14:52:303:36:208:158:20
8:11
-1:43

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

7:43 /mi

Average Pace

8:15 /mi

Slowest Pace

10:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

23:58

11% of race

Time at Steady Pace

2:28:44

69% of race

Time at Slower Pace

43:38

20% of race

Average Pace: 8:15 /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 mi11:40:0823:587:4323:58
7:43
#11600
10K
6.21 mi12:04:5848:487:5124:50
8:00
#13225
15K
9.32 mi12:29:301:13:207:5224:32
7:54
#13316
20K
12.43 mi12:53:591:37:497:5224:29
7:53
#13060
Half
13.11 mi12:59:251:43:157:535:26
7:58
#13101
25K
15.53 mi13:19:102:03:007:5519:45
8:09
#13211
30K
18.64 mi13:45:292:29:198:0126:19
8:28
#13378
20M
20.00 mi13:57:342:41:248:0412:05
8:54
#13594
21M
21.00 mi14:08:072:51:578:1110:33
10:33
#14124
35K
21.75 mi14:14:572:58:478:136:50
9:08
#14313
23M
23.00 mi14:25:423:09:328:1410:45
8:35
#14259
24M
24.00 mi14:33:453:17:358:148:03
8:03
#14117
40K
24.85 mi14:40:453:24:358:147:00
8:11
#13986
25.2M
25.20 mi14:44:103:28:008:153:25
9:54
#14051
Finish
26.22 mi14:52:303:36:208:158:20
8:11
#14012
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi116002646264613520(Top 51%)3793(Top 33%)3793(Top 78%)
10K6.21 mi3.10 mi13225-16253577-9313577-93114771(Top 55%)4524(Top 40%)4524(Top 93%)
15K9.32 mi3.11 mi13316-913642-653642-6513520(Top 51%)3793(Top 33%)3793(Top 78%)
20K12.43 mi3.11 mi13060+2563518+1243518+12412473(Top 47%)3247(Top 28%)3247(Top 66%)
Half13.11 mi0.68 mi13101-413542-243542-2414137(Top 53%)4168(Top 36%)4168(Top 85%)
25K15.53 mi2.42 mi13211-1103623-813623-8113862(Top 52%)4138(Top 36%)4138(Top 85%)
30K18.64 mi3.11 mi13378-1673768-1453768-14514124(Top 53%)4407(Top 39%)4407(Top 90%)
20M20.00 mi1.36 mi13594-2163919-1513919-15115968(Top 60%)5550(Top 49%)5550(Top 114%)
21M21.00 mi1.00 mi14124-5304266-3474266-34719743(Top 74%)7784(Top 68%)7784(Top 159%)
35K21.75 mi0.75 mi14313-1894398-1324398-13218470(Top 69%)7078(Top 62%)7078(Top 145%)
23M23.00 mi1.25 mi14259+544388+104388+1013736(Top 52%)4464(Top 39%)4464(Top 91%)
24M24.00 mi1.00 mi14117+1424319+694319+6911624(Top 44%)3402(Top 30%)3402(Top 70%)
40K24.85 mi0.85 mi13986+1314263+564263+5611325(Top 43%)3334(Top 29%)3334(Top 68%)
25.2M25.20 mi0.35 mi14051-654310-474310-4717023(Top 64%)6415(Top 56%)6415(Top 131%)
Finish26.22 mi1.02 mi14012+394302+84302+813312(Top 50%)4371(Top 38%)4371(Top 89%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21story building
+97ft-345ft

Overall

13520

Females

3793

F18-39

3793

5K→10K

3.1 - 6.2 mi

Top 55%
×5story building
+79ft-138ft

Overall

14771

Females

4524

F18-39

4524

10K→15K

6.2 - 9.3 mi

Top 51%
×3story building
+67ft-78ft

Overall

13520

Females

3793

F18-39

3793

15K→20K

9.3 - 12.4 mi

Top 47%
×5story building
+106ft-86ft

Overall

12473

Females

3247

F18-39

3247

20K→Half

12.4 - 13.1 mi

Top 53%
×2story building
+19ft-37ft

Overall

14137

Females

4168

F18-39

4168

Half→25K

13.1 - 15.5 mi

Top 52%
×4story building
+66ft-88ft

Overall

13862

Females

4138

F18-39

4138

25K→30K

15.5 - 18.6 mi

Top 53%
×9story building
+181ft-148ft

Overall

14124

Females

4407

F18-39

4407

30K→20M

18.6 - 20.0 mi

Top 60%
×5story building
+64ft-50ft

Overall

15968

Females

5550

F18-39

5550

20M→21M

20.0 - 21.0 mi

Top 74%
×8story building
+106ft-24ft

Overall

19743

Females

7784

F18-39

7784

21M→35K

21.0 - 21.8 mi

Top 69%
×7story building
+17ft-86ft

Overall

18470

Females

7078

F18-39

7078

35K→23M

21.8 - 23.0 mi

Top 52%
×5story building
+23ft-63ft

Overall

13736

Females

4464

F18-39

4464

23M→24M

23.0 - 24.0 mi

Top 44%
×6story building
+12ft-82ft

Overall

11624

Females

3402

F18-39

3402

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

11325

Females

3334

F18-39

3334

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

17023

Females

6415

F18-39

6415

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2story building
+22ft-21ft

Overall

13312

Females

4371

F18-39

4371

Passing Analysis

Category:
Athletes Passed
1345
Passed By
3757
Net Change
-2412
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11600
5K → 10K211646-1625#11600#13225
10K → 15K168259-91#13225#13316
15K → 20K31357+256#13316#13060
20K → Half2263-41#13060#13101
Half → 25K109219-110#13101#13211
25K → 30K135302-167#13211#13378
30K → 20M36252-216#13378#13594
20M → 21M12542-530#13594#14124
21M → 35K15204-189#14124#14313
35K → 23M11258+54#14313#14259
23M → 24M1497+142#14259#14117
24M → 40K15322+131#14117#13986
40K → 25.2M1479-65#13986#14051
25.2M → Finish8647+39#14051#14012
TOTALS13453757-2412
📊

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