Boston Marathon logo
BOSTON MARATHON 2023

Makenzi Bellando

Bib: 30817•F

MA

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
9:44/mi
30:15
↑ 97↓ 3451.5%
10K· 6.21 mi
9:06/mi
58:31
↑ 79↓ 1380.4%
15K· 9.32 mi
9:18/mi
1:27:25
↑ 67↓ 78
20K· 12.43 mi
10:36/mi
2:00:21
↑ 106↓ 860.1%
Half· 13.11 mi
9:29/mi
2:06:49
↑ 19↓ 370.5%
25K· 15.53 mi
10:28/mi
2:32:11
↑ 66↓ 880.2%
30K· 18.64 mi
11:20/mi
3:07:24
↑ 181↓ 1480.2%
20M
11:03/mi
3:22:25
↑ 64↓ 500.2%
21M
12:13/mi
3:34:38
↑ 106↓ 241.6%
35K· 21.75 mi
11:58/mi
3:43:35
↑ 17↓ 861.7%
23M
10:59/mi
3:57:20
↑ 23↓ 630.6%
24M
11:31/mi
4:08:51
↓ 821.3%
40K· 24.85 mi
11:25/mi
4:18:37
↓ 200.3%
25.2M
13:03/mi
4:23:07
↑ 13↓ 160.2%
Finish· 26.22 mi
10:10/mi
4:33:29
↑ 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
Time2:06:49
Pace9:40 /mi
2nd Half
Distance13.11 mi
Time2:26:40
Pace11:11 /mi
📊Positive Split: 15.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:5830:159:4430:15
9:44
-
10K
6.21 mi12:15:1458:319:2528:16
9:06
-0:38
15K
9.32 mi12:44:081:27:259:2328:54
9:18
+0:12
20K
12.43 mi13:17:042:00:219:4132:56
10:36
+1:18
Half
13.11 mi13:23:322:06:499:406:28
9:29
-1:07
25K
15.53 mi13:48:542:32:119:4825:22
10:28
+0:59
30K
18.64 mi14:24:073:07:2410:0335:13
11:20
+0:52
20M
20.00 mi14:39:083:22:2510:0715:01
11:03
-0:17
21M
21.00 mi14:51:213:34:3810:1312:13
12:13
+1:10
35K
21.75 mi15:00:183:43:3510:178:57
11:58
-0:15
23M
23.00 mi15:14:033:57:2010:1913:45
10:59
-0:59
24M
24.00 mi15:25:344:08:5110:2211:31
11:31
+0:32
40K
24.85 mi15:35:204:18:3710:249:46
11:25
-0:06
25.2M
25.20 mi15:39:504:23:0710:264:30
13:03
+1:38
Finish
26.22 mi15:50:124:33:2910:2610:22
10:10
-2:53

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

9:06 /mi

Average Pace

10:26 /mi

Slowest Pace

13:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:15

38% of race

Time at Steady Pace

2:23:34

52% of race

Time at Slower Pace

25:40

9% of race

Average Pace: 10:26 /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 mi11:46:5830:159:4430:15
9:44
#22758
10K
6.21 mi12:15:1458:319:2528:16
9:06
#22103
15K
9.32 mi12:44:081:27:259:2328:54
9:18
#21929
20K
12.43 mi13:17:042:00:219:4132:56
10:36
#22647
Half
13.11 mi13:23:322:06:499:406:28
9:29
#22610
25K
15.53 mi13:48:542:32:119:4825:22
10:28
#22710
30K
18.64 mi14:24:073:07:2410:0335:13
11:20
#22913
20M
20.00 mi14:39:083:22:2510:0715:01
11:03
#22906
21M
21.00 mi14:51:213:34:3810:1312:13
12:13
#22919
35K
21.75 mi15:00:183:43:3510:178:57
11:58
#23014
23M
23.00 mi15:14:033:57:2010:1913:45
10:59
#22954
24M
24.00 mi15:25:344:08:5110:2211:31
11:31
#23002
40K
24.85 mi15:35:204:18:3710:249:46
11:25
#22992
25.2M
25.20 mi15:39:504:23:0710:264:30
13:03
#23036
Finish
26.22 mi15:50:124:33:2910:2610:22
10:10
#22994
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi227589261926121648(Top 81%)8585(Top 75%)8585(Top 176%)
10K6.21 mi3.10 mi22103+6558906+3558906+35521272(Top 80%)8431(Top 74%)8431(Top 173%)
15K9.32 mi3.11 mi21929+1748801+1058801+10521648(Top 81%)8585(Top 75%)8585(Top 176%)
20K12.43 mi3.11 mi22647-7189160-3599160-35924011(Top 90%)9912(Top 87%)9912(Top 203%)
Half13.11 mi0.68 mi22610+379145+159145+1522084(Top 83%)8833(Top 77%)8833(Top 181%)
25K15.53 mi2.42 mi22710-1009214-699214-6923133(Top 87%)9459(Top 83%)9459(Top 194%)
30K18.64 mi3.11 mi22913-2039335-1219335-12123625(Top 89%)9791(Top 86%)9791(Top 200%)
20M20.00 mi1.36 mi22906+79349-149349-1422794(Top 86%)9405(Top 82%)9405(Top 193%)
21M21.00 mi1.00 mi22919-139366-179366-1723077(Top 87%)9590(Top 84%)9590(Top 196%)
35K21.75 mi0.75 mi23014-959419-539419-5324656(Top 93%)10482(Top 92%)10482(Top 215%)
23M23.00 mi1.25 mi22954+609402+179402+1722315(Top 84%)9224(Top 81%)9224(Top 189%)
24M24.00 mi1.00 mi23002-489438-369438-3623896(Top 90%)10104(Top 88%)10104(Top 207%)
40K24.85 mi0.85 mi22992+109441-39441-323098(Top 87%)9716(Top 85%)9716(Top 199%)
25.2M25.20 mi0.35 mi23036-449460-199460-1924040(Top 90%)10205(Top 89%)10205(Top 209%)
Finish26.22 mi1.02 mi22994+429445+159445+1522234(Top 84%)9251(Top 81%)9251(Top 189%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21story building
+97ft-345ft

Overall

21648

Females

8585

F18-39

8585

5K→10K

3.1 - 6.2 mi

Top 80%
×5story building
+79ft-138ft

Overall

21272

Females

8431

F18-39

8431

10K→15K

6.2 - 9.3 mi

Top 81%
×3story building
+67ft-78ft

Overall

21648

Females

8585

F18-39

8585

15K→20K

9.3 - 12.4 mi

Top 90%
×5story building
+106ft-86ft

Overall

24011

Females

9912

F18-39

9912

20K→Half

12.4 - 13.1 mi

Top 83%
×2story building
+19ft-37ft

Overall

22084

Females

8833

F18-39

8833

Half→25K

13.1 - 15.5 mi

Top 87%
×4story building
+66ft-88ft

Overall

23133

Females

9459

F18-39

9459

25K→30K

15.5 - 18.6 mi

Top 89%
×9story building
+181ft-148ft

Overall

23625

Females

9791

F18-39

9791

30K→20M

18.6 - 20.0 mi

Top 86%
×5story building
+64ft-50ft

Overall

22794

Females

9405

F18-39

9405

20M→21M

20.0 - 21.0 mi

Top 87%
×8story building
+106ft-24ft

Overall

23077

Females

9590

F18-39

9590

21M→35K

21.0 - 21.8 mi

Top 93%
×7story building
+17ft-86ft

Overall

24656

Females

10482

F18-39

10482

35K→23M

21.8 - 23.0 mi

Top 84%
×5story building
+23ft-63ft

Overall

22315

Females

9224

F18-39

9224

23M→24M

23.0 - 24.0 mi

Top 90%
×6story building
+12ft-82ft

Overall

23896

Females

10104

F18-39

10104

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

23098

Females

9716

F18-39

9716

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

24040

Females

10205

F18-39

10205

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2story building
+22ft-21ft

Overall

22234

Females

9251

F18-39

9251

Passing Analysis

Category:
Athletes Passed
1490
Passed By
1726
Net Change
-236
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22758
5K → 10K69540+655#22758#22103
10K → 15K276102+174#22103#21929
15K → 20K20738-718#21929#22647
20K → Half436+37#22647#22610
Half → 25K67167-100#22610#22710
25K → 30K54257-203#22710#22913
30K → 20M6760+7#22913#22906
20M → 21M4457-13#22906#22919
21M → 35K10105-95#22919#23014
35K → 23M8222+60#23014#22954
23M → 24M2775-48#22954#23002
24M → 40K4131+10#23002#22992
40K → 25.2M246-44#22992#23036
25.2M → Finish6220+42#23036#22994
TOTALS14901726-236
📊

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