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BOSTON MARATHON 2023

Alexandra Loblundo

Bib: 26686•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 43%
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:50
Rank: #18466
Start → 5K
26:50 | 8:38/mi
10K· 6.21 mi
52:58
Rank: #18054 (+412)
5K → 10K
26:08 | 8:25/mi
15K· 9.32 mi
1:18:37
Rank: #17424 (+630)
10K → 15K
25:39 | 8:15/mi
20K· 12.43 mi
1:44:22
Rank: #16927 (+497)
15K → 20K
25:45 | 8:17/mi
Half· 13.11 mi
1:50:00
Rank: #16883 (+44)
20K → Half
5:38 | 8:15/mi
25K· 15.53 mi
2:09:48
Rank: #16442 (+441)
Half → 25K
19:48 | 8:10/mi
30K· 18.64 mi
2:36:13
Rank: #16026 (+416)
25K → 30K
26:25 | 8:30/mi
20M
2:47:40
Rank: #15769 (+257)
30K → 20M
11:27 | 8:26/mi
21M
2:56:19
Rank: #15506 (+263)
20M → 21M
8:39 | 8:39/mi
35K· 21.75 mi
3:02:25
Rank: #15406 (+100)
21M → 35K
6:06 | 8:09/mi
23M
3:13:03
Rank: #15249 (+157)
35K → 23M
10:38 | 8:30/mi
24M
3:21:26
Rank: #15153 (+96)
23M → 24M
8:23 | 8:23/mi
40K· 24.85 mi
3:28:34
Rank: #15052 (+101)
24M → 40K
7:08 | 8:21/mi
25.2M
3:31:36
Rank: #14987 (+65)
40K → 25.2M
3:02 | 8:48/mi
Finish· 26.22 mi
3:39:52
Rank: #14913 (+74)
25.2M → Finish
8:16 | 8:07/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:50:00
Pace8:23 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:49:52
Pace8:23 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:2026:508:3826:50
8:38
-
10K
6.21 mi12:16:2852:588:3126:08
8:25
-0:13
15K
9.32 mi12:42:071:18:378:2625:39
8:15
-0:10
20K
12.43 mi13:07:521:44:228:2425:45
8:17
+0:02
Half
13.11 mi13:13:301:50:008:235:38
8:15
-0:02
25K
15.53 mi13:33:182:09:488:2119:48
8:10
-0:05
30K
18.64 mi13:59:432:36:138:2326:25
8:30
+0:20
20M
20.00 mi14:11:102:47:408:2311:27
8:26
-0:04
21M
21.00 mi14:19:492:56:198:248:39
8:39
+0:13
35K
21.75 mi14:25:553:02:258:236:06
8:09
-0:30
23M
23.00 mi14:36:333:13:038:2410:38
8:30
+0:21
24M
24.00 mi14:44:563:21:268:248:23
8:23
-0:07
40K
24.85 mi14:52:043:28:348:237:08
8:21
-0:02
25.2M
25.20 mi14:55:063:31:368:243:02
8:48
+0:27
Finish
26.22 mi15:03:223:39:528:248:16
8:07
-0:41

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

8:07 /mi

Average Pace

8:24 /mi

Slowest Pace

8:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:01:21

82% of race

Time at Steady Pace

38:31

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:23 /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 mi11:50:2026:508:3826:50
8:38
#18466
10K
6.21 mi12:16:2852:588:3126:08
8:25
#18054
15K
9.32 mi12:42:071:18:378:2625:39
8:15
#17424
20K
12.43 mi13:07:521:44:228:2425:45
8:17
#16927
Half
13.11 mi13:13:301:50:008:235:38
8:15
#16883
25K
15.53 mi13:33:182:09:488:2119:48
8:10
#16442
30K
18.64 mi13:59:432:36:138:2326:25
8:30
#16026
20M
20.00 mi14:11:102:47:408:2311:27
8:26
#15769
21M
21.00 mi14:19:492:56:198:248:39
8:39
#15506
35K
21.75 mi14:25:553:02:258:236:06
8:09
#15406
23M
23.00 mi14:36:333:13:038:2410:38
8:30
#15249
24M
24.00 mi14:44:563:21:268:248:23
8:23
#15153
40K
24.85 mi14:52:043:28:348:237:08
8:21
#15052
25.2M
25.20 mi14:55:063:31:368:243:02
8:48
#14987
Finish
26.22 mi15:03:223:39:528:248:16
8:07
#14913
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi184666847684716258(Top 61%)5443(Top 48%)5443(Top 111%)
10K6.21 mi3.10 mi18054+4126565+2826565+28217648(Top 66%)6269(Top 55%)6269(Top 128%)
15K9.32 mi3.11 mi17424+6306172+3936172+39316258(Top 61%)5443(Top 48%)5443(Top 111%)
20K12.43 mi3.11 mi16927+4975882+2905882+29015544(Top 58%)5058(Top 44%)5058(Top 104%)
Half13.11 mi0.68 mi16883+445854+285854+2816217(Top 61%)5418(Top 47%)5418(Top 111%)
25K15.53 mi2.42 mi16442+4415603+2515603+25114025(Top 53%)4245(Top 37%)4245(Top 87%)
30K18.64 mi3.11 mi16026+4165392+2115392+21114344(Top 54%)4534(Top 40%)4534(Top 93%)
20M20.00 mi1.36 mi15769+2575253+1395253+13913206(Top 50%)3975(Top 35%)3975(Top 81%)
21M21.00 mi1.00 mi15506+2635119+1345119+13411402(Top 43%)3100(Top 27%)3100(Top 63%)
35K21.75 mi0.75 mi15406+1005074+455074+4513209(Top 50%)4130(Top 36%)4130(Top 85%)
23M23.00 mi1.25 mi15249+1574992+824992+8213203(Top 50%)4188(Top 37%)4188(Top 86%)
24M24.00 mi1.00 mi15153+964948+444948+4413796(Top 52%)4554(Top 40%)4554(Top 93%)
40K24.85 mi0.85 mi15052+1014908+404908+4012383(Top 47%)3883(Top 34%)3883(Top 80%)
25.2M25.20 mi0.35 mi14987+654883+254883+2511433(Top 43%)3445(Top 30%)3445(Top 71%)
Finish26.22 mi1.02 mi14913+744859+244859+2412893(Top 48%)4164(Top 36%)4164(Top 85%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21stories
+97ft-345ft

Overall

16258

Females

5443

F18-39

5443

5K→10K

3.1 - 6.2 mi

Top 66%
×5stories
+79ft-138ft

Overall

17648

Females

6269

F18-39

6269

10K→15K

6.2 - 9.3 mi

Top 61%
×3stories
+67ft-78ft

Overall

16258

Females

5443

F18-39

5443

15K→20K

9.3 - 12.4 mi

Top 58%
×5stories
+106ft-86ft

Overall

15544

Females

5058

F18-39

5058

20K→Half

12.4 - 13.1 mi

Top 61%
×2stories
+19ft-37ft

Overall

16217

Females

5418

F18-39

5418

Half→25K

13.1 - 15.5 mi

Top 53%
×4stories
+66ft-88ft

Overall

14025

Females

4245

F18-39

4245

25K→30K

15.5 - 18.6 mi

Top 54%
×9stories
+181ft-148ft

Overall

14344

Females

4534

F18-39

4534

30K→20M

18.6 - 20.0 mi

Top 50%
×5stories
+64ft-50ft

Overall

13206

Females

3975

F18-39

3975

20M→21M

20.0 - 21.0 mi

Top 43%
×8stories
+106ft-24ft

Overall

11402

Females

3100

F18-39

3100

21M→35K

21.0 - 21.8 mi

Top 50%
×7stories
+17ft-86ft

Overall

13209

Females

4130

F18-39

4130

35K→23M

21.8 - 23.0 mi

Top 50%
×5stories
+23ft-63ft

Overall

13203

Females

4188

F18-39

4188

23M→24M

23.0 - 24.0 mi

Top 52%
×6stories
+12ft-82ft

Overall

13796

Females

4554

F18-39

4554

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

12383

Females

3883

F18-39

3883

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

11433

Females

3445

F18-39

3445

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2stories
+22ft-21ft

Overall

12893

Females

4164

F18-39

4164

Passing Analysis

Category:
Athletes Passed
3936
Passed By
383
Net Change
+3553
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18466
5K → 10K589177+412#18466#18054
10K → 15K66535+630#18054#17424
15K → 20K51821+497#17424#16927
20K → Half5410+44#16927#16883
Half → 25K4498+441#16883#16442
25K → 30K44024+416#16442#16026
30K → 20M2625+257#16026#15769
20M → 21M2641+263#15769#15506
21M → 35K1066+100#15506#15406
35K → 23M17720+157#15406#15249
23M → 24M11923+96#15249#15153
24M → 40K11716+101#15153#15052
40K → 25.2M705+65#15052#14987
25.2M → Finish10632+74#14987#14913
TOTALS3936383+3553
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing