Boston Marathon logo
BOSTON MARATHON 2023

Morgan Boulton

Bib: 26446•F

NY

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
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
9:57/mi
30:56
↑ 97↓ 3451.5%
10K· 6.21 mi
10:27/mi
1:03:23
↑ 79↓ 1380.4%
15K· 9.32 mi
10:36/mi
1:36:19
↑ 67↓ 78
20K· 12.43 mi
11:23/mi
2:11:41
↑ 106↓ 860.1%
Half· 13.11 mi
11:52/mi
2:19:47
↑ 19↓ 370.5%
25K· 15.53 mi
11:58/mi
2:48:48
↑ 66↓ 880.2%
30K· 18.64 mi
12:22/mi
3:27:14
↑ 181↓ 1480.2%
20M
12:26/mi
3:44:08
↑ 64↓ 500.2%
21M
13:26/mi
3:57:34
↑ 106↓ 241.6%
35K· 21.75 mi
11:24/mi
4:06:06
↑ 17↓ 861.7%
23M
12:32/mi
4:21:48
↑ 23↓ 630.6%
24M
11:37/mi
4:33:25
↓ 821.3%
40K· 24.85 mi
12:43/mi
4:44:17
↓ 200.3%
25.2M
12:43/mi
4:48:40
↑ 13↓ 160.2%
Finish· 26.22 mi
11:50/mi
5:00:44
↑ 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
Time2:19:47
Pace10:40 /mi
2nd Half
Distance13.11 mi
Time2:40:57
Pace12:17 /mi
📊Positive Split: 15.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:4830:569:5730:56
9:57
-
10K
6.21 mi12:26:151:03:2310:1232:27
10:27
+0:30
15K
9.32 mi12:59:111:36:1910:2032:56
10:36
+0:09
20K
12.43 mi13:34:332:11:4110:3635:22
11:23
+0:47
Half
13.11 mi13:42:392:19:4710:408:06
11:52
+0:29
25K
15.53 mi14:11:402:48:4810:5229:01
11:58
+0:06
30K
18.64 mi14:50:063:27:1411:0738:26
12:22
+0:24
20M
20.00 mi15:07:003:44:0811:1216:54
12:26
+0:04
21M
21.00 mi15:20:263:57:3411:1913:26
13:26
+1:00
35K
21.75 mi15:28:584:06:0611:198:32
11:24
-2:02
23M
23.00 mi15:44:404:21:4811:2315:42
12:32
+1:08
24M
24.00 mi15:56:174:33:2511:2411:37
11:37
-0:55
40K
24.85 mi16:07:094:44:1711:2610:52
12:43
+1:06
25.2M
25.20 mi16:11:324:48:4011:274:23
12:43
0:00
Finish
26.22 mi16:23:365:00:4411:2912:04
11:50
-0:53

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

9:57 /mi

Average Pace

11:29 /mi

Slowest Pace

13:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:20:13

47% of race

Time at Steady Pace

1:00:48

20% of race

Time at Slower Pace

1:39:43

33% of race

Average Pace: 11:28 /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 mi11:53:4830:569:5730:56
9:57
#23349
10K
6.21 mi12:26:151:03:2310:1232:27
10:27
#24058
15K
9.32 mi12:59:111:36:1910:2032:56
10:36
#24296
20K
12.43 mi13:34:332:11:4110:3635:22
11:23
#24584
Half
13.11 mi13:42:392:19:4710:408:06
11:52
#24690
25K
15.53 mi14:11:402:48:4810:5229:01
11:58
#24803
30K
18.64 mi14:50:063:27:1411:0738:26
12:22
#24865
20M
20.00 mi15:07:003:44:0811:1216:54
12:26
#24842
21M
21.00 mi15:20:263:57:3411:1913:26
13:26
#24835
35K
21.75 mi15:28:584:06:0611:198:32
11:24
#24808
23M
23.00 mi15:44:404:21:4811:2315:42
12:32
#24827
24M
24.00 mi15:56:174:33:2511:2411:37
11:37
#24806
40K
24.85 mi16:07:094:44:1711:2610:52
12:43
#24817
25.2M
25.20 mi16:11:324:48:4011:274:23
12:43
#24822
Finish
26.22 mi16:23:365:00:4411:2912:04
11:50
#24853
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi233499575957524642(Top 93%)10257(Top 90%)10257(Top 210%)
10K6.21 mi3.10 mi24058-7099928-3539928-35324590(Top 92%)10219(Top 89%)10219(Top 209%)
15K9.32 mi3.11 mi24296-23810053-12510053-12524642(Top 93%)10257(Top 90%)10257(Top 210%)
20K12.43 mi3.11 mi24584-28810225-17210225-17225104(Top 94%)10543(Top 92%)10543(Top 216%)
Half13.11 mi0.68 mi24690-10610284-5910284-5925785(Top 97%)10942(Top 96%)10942(Top 224%)
25K15.53 mi2.42 mi24803-11310358-7410358-7425136(Top 94%)10596(Top 93%)10596(Top 217%)
30K18.64 mi3.11 mi24865-6210413-5510413-5524878(Top 93%)10500(Top 92%)10500(Top 215%)
20M20.00 mi1.36 mi24842+2310411+210411+224674(Top 93%)10430(Top 91%)10430(Top 214%)
21M21.00 mi1.00 mi24835+710406+510406+524522(Top 92%)10356(Top 91%)10356(Top 212%)
35K21.75 mi0.75 mi24808+2710399+710399+723986(Top 90%)10124(Top 89%)10124(Top 207%)
23M23.00 mi1.25 mi24827-1910419-2010419-2024632(Top 93%)10453(Top 92%)10453(Top 214%)
24M24.00 mi1.00 mi24806+2110420-110420-124035(Top 90%)10179(Top 89%)10179(Top 208%)
40K24.85 mi0.85 mi24817-1110431-1110431-1124689(Top 93%)10515(Top 92%)10515(Top 215%)
25.2M25.20 mi0.35 mi24822-510436-510436-523625(Top 89%)10000(Top 88%)10000(Top 205%)
Finish26.22 mi1.02 mi24853-3110461-2510461-2525096(Top 94%)10715(Top 94%)10715(Top 219%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 93%
×21story building
+97ft-345ft

Overall

24642

Females

10257

F18-39

10257

5K→10K

3.1 - 6.2 mi

Top 92%
×5story building
+79ft-138ft

Overall

24590

Females

10219

F18-39

10219

10K→15K

6.2 - 9.3 mi

Top 93%
×3story building
+67ft-78ft

Overall

24642

Females

10257

F18-39

10257

15K→20K

9.3 - 12.4 mi

Top 94%
×5story building
+106ft-86ft

Overall

25104

Females

10543

F18-39

10543

20K→Half

12.4 - 13.1 mi

Top 97%
×2story building
+19ft-37ft

Overall

25785

Females

10942

F18-39

10942

Half→25K

13.1 - 15.5 mi

Top 94%
×4story building
+66ft-88ft

Overall

25136

Females

10596

F18-39

10596

25K→30K

15.5 - 18.6 mi

Top 93%
×9story building
+181ft-148ft

Overall

24878

Females

10500

F18-39

10500

30K→20M

18.6 - 20.0 mi

Top 93%
×5story building
+64ft-50ft

Overall

24674

Females

10430

F18-39

10430

20M→21M

20.0 - 21.0 mi

Top 92%
×8story building
+106ft-24ft

Overall

24522

Females

10356

F18-39

10356

21M→35K

21.0 - 21.8 mi

Top 90%
×7story building
+17ft-86ft

Overall

23986

Females

10124

F18-39

10124

35K→23M

21.8 - 23.0 mi

Top 93%
×5story building
+23ft-63ft

Overall

24632

Females

10453

F18-39

10453

23M→24M

23.0 - 24.0 mi

Top 90%
×6story building
+12ft-82ft

Overall

24035

Females

10179

F18-39

10179

24M→40K

24.0 - 24.9 mi

Top 93%
×1story
+6ft-20ft

Overall

24689

Females

10515

F18-39

10515

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

23625

Females

10000

F18-39

10000

25.2M→Finish

25.2 - 26.2 mi

Top 94%
×2story building
+22ft-21ft

Overall

25096

Females

10715

F18-39

10715

Passing Analysis

Category:
Athletes Passed
426
Passed By
1930
Net Change
-1504
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23349
5K → 10K28737-709#23349#24058
10K → 15K45283-238#24058#24296
15K → 20K26314-288#24296#24584
20K → Half1107-106#24584#24690
Half → 25K32145-113#24690#24803
25K → 30K69131-62#24803#24865
30K → 20M5633+23#24865#24842
20M → 21M3124+7#24842#24835
21M → 35K4013+27#24835#24808
35K → 23M2544-19#24808#24827
23M → 24M3716+21#24827#24806
24M → 40K2031-11#24806#24817
40K → 25.2M712-5#24817#24822
25.2M → Finish940-31#24822#24853
TOTALS4261930-1504
📊

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