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BOSTON MARATHON 2023

Melissa Blanchard

Bib: 12527•F

MN

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 31%
Gender (Female)
#0 / 11423
Top 12%
Division (F18-39)
#0 / 4884
Top 23%
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
7:23/mi
22:55
↑ 97↓ 3451.5%
10K· 6.21 mi
7:04/mi
44:51
↑ 79↓ 1380.4%
15K· 9.32 mi
7:10/mi
1:07:08
↑ 67↓ 78
20K· 12.43 mi
7:18/mi
1:29:49
↑ 106↓ 860.1%
Half· 13.11 mi
7:12/mi
1:34:44
↑ 19↓ 370.5%
25K· 15.53 mi
7:21/mi
1:52:33
↑ 66↓ 880.2%
30K· 18.64 mi
7:39/mi
2:16:18
↑ 181↓ 1480.2%
20M
8:21/mi
2:27:39
↑ 64↓ 500.2%
21M
8:31/mi
2:36:10
↑ 106↓ 241.6%
35K· 21.75 mi
7:26/mi
2:41:44
↑ 17↓ 861.7%
23M
7:55/mi
2:51:39
↑ 23↓ 630.6%
24M
7:31/mi
2:59:10
↓ 821.3%
40K· 24.85 mi
7:49/mi
3:05:51
↓ 200.3%
25.2M
8:59/mi
3:08:57
↑ 13↓ 160.2%
Finish· 26.22 mi
8:03/mi
3:17:09
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:44
Pace7:14 /mi
2nd Half
Distance13.11 mi
Time1:42:25
Pace7:49 /mi
📊Positive Split: 8.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:2422:557:2322:55
7:23
-
10K
6.21 mi11:12:2044:517:1321:56
7:04
-0:19
15K
9.32 mi11:34:371:07:087:1222:17
7:10
+0:06
20K
12.43 mi11:57:181:29:497:1422:41
7:18
+0:08
Half
13.11 mi12:02:131:34:447:144:55
7:12
-0:06
25K
15.53 mi12:20:021:52:337:1517:49
7:21
+0:09
30K
18.64 mi12:43:472:16:187:1923:45
7:39
+0:18
20M
20.00 mi12:55:082:27:397:2311:21
8:21
+0:42
21M
21.00 mi13:03:392:36:107:268:31
8:31
+0:10
35K
21.75 mi13:09:132:41:447:265:34
7:26
-1:05
23M
23.00 mi13:19:082:51:397:289:55
7:55
+0:29
24M
24.00 mi13:26:392:59:107:287:31
7:31
-0:24
40K
24.85 mi13:33:203:05:517:296:41
7:49
+0:18
25.2M
25.20 mi13:36:263:08:577:303:06
8:59
+1:10
Finish
26.22 mi13:44:383:17:097:318:12
8:03
-0:56

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

7:04 /mi

Average Pace

7:31 /mi

Slowest Pace

8:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

49:08

25% of race

Time at Steady Pace

1:40:15

51% of race

Time at Slower Pace

47:46

24% of race

Average Pace: 7:31 /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 mi10:50:2422:557:2322:55
7:23
#8661
10K
6.21 mi11:12:2044:517:1321:56
7:04
#7889
15K
9.32 mi11:34:371:07:087:1222:17
7:10
#7774
20K
12.43 mi11:57:181:29:497:1422:41
7:18
#7759
Half
13.11 mi12:02:131:34:447:144:55
7:12
#7750
25K
15.53 mi12:20:021:52:337:1517:49
7:21
#7693
30K
18.64 mi12:43:472:16:187:1923:45
7:39
#7721
20M
20.00 mi12:55:082:27:397:2311:21
8:21
#8037
21M
21.00 mi13:03:392:36:107:268:31
8:31
#8164
35K
21.75 mi13:09:132:41:447:265:34
7:26
#8147
23M
23.00 mi13:19:082:51:397:289:55
7:55
#8170
24M
24.00 mi13:26:392:59:107:287:31
7:31
#8128
40K
24.85 mi13:33:203:05:517:296:41
7:49
#8147
25.2M
25.20 mi13:36:263:08:577:303:06
8:59
#8204
Finish
26.22 mi13:44:383:17:097:318:12
8:03
#8348
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8661126012607624(Top 29%)939(Top 8%)939(Top 19%)
10K6.21 mi3.10 mi7889+772979+281979+2817191(Top 27%)810(Top 7%)810(Top 17%)
15K9.32 mi3.11 mi7774+115956+23956+237624(Top 29%)939(Top 8%)939(Top 19%)
20K12.43 mi3.11 mi7759+15967-11967-117809(Top 29%)1040(Top 9%)1040(Top 21%)
Half13.11 mi0.68 mi7750+9972-5972-57990(Top 30%)1099(Top 10%)1099(Top 23%)
25K15.53 mi2.42 mi7693+57965+7965+77628(Top 29%)1065(Top 9%)1065(Top 22%)
30K18.64 mi3.11 mi7721-281013-481013-488270(Top 31%)1413(Top 12%)1413(Top 29%)
20M20.00 mi1.36 mi8037-3161146-1331146-13312705(Top 48%)3676(Top 32%)3676(Top 75%)
21M21.00 mi1.00 mi8164-1271217-711217-7110582(Top 40%)2655(Top 23%)2655(Top 54%)
35K21.75 mi0.75 mi8147+171221-41221-48129(Top 31%)1547(Top 14%)1547(Top 32%)
23M23.00 mi1.25 mi8170-231249-281249-289224(Top 35%)2127(Top 19%)2127(Top 44%)
24M24.00 mi1.00 mi8128+421254-51254-57841(Top 29%)1616(Top 14%)1616(Top 33%)
40K24.85 mi0.85 mi8147-191282-281282-288800(Top 33%)2077(Top 18%)2077(Top 43%)
25.2M25.20 mi0.35 mi8204-571313-311313-3112467(Top 47%)3926(Top 34%)3926(Top 80%)
Finish26.22 mi1.02 mi8348-1441391-781391-7812442(Top 47%)3919(Top 34%)3919(Top 80%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21story building
+97ft-345ft

Overall

7624

Females

939

F18-39

939

5K→10K

3.1 - 6.2 mi

Top 27%
×5story building
+79ft-138ft

Overall

7191

Females

810

F18-39

810

10K→15K

6.2 - 9.3 mi

Top 29%
×3story building
+67ft-78ft

Overall

7624

Females

939

F18-39

939

15K→20K

9.3 - 12.4 mi

Top 29%
×5story building
+106ft-86ft

Overall

7809

Females

1040

F18-39

1040

20K→Half

12.4 - 13.1 mi

Top 30%
×2story building
+19ft-37ft

Overall

7990

Females

1099

F18-39

1099

Half→25K

13.1 - 15.5 mi

Top 29%
×4story building
+66ft-88ft

Overall

7628

Females

1065

F18-39

1065

25K→30K

15.5 - 18.6 mi

Top 31%
×9story building
+181ft-148ft

Overall

8270

Females

1413

F18-39

1413

30K→20M

18.6 - 20.0 mi

Top 48%
×5story building
+64ft-50ft

Overall

12705

Females

3676

F18-39

3676

20M→21M

20.0 - 21.0 mi

Top 40%
×8story building
+106ft-24ft

Overall

10582

Females

2655

F18-39

2655

21M→35K

21.0 - 21.8 mi

Top 31%
×7story building
+17ft-86ft

Overall

8129

Females

1547

F18-39

1547

35K→23M

21.8 - 23.0 mi

Top 35%
×5story building
+23ft-63ft

Overall

9224

Females

2127

F18-39

2127

23M→24M

23.0 - 24.0 mi

Top 29%
×6story building
+12ft-82ft

Overall

7841

Females

1616

F18-39

1616

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

8800

Females

2077

F18-39

2077

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

12467

Females

3926

F18-39

3926

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2story building
+22ft-21ft

Overall

12442

Females

3919

F18-39

3919

Passing Analysis

Category:
Athletes Passed
1752
Passed By
1439
Net Change
+313
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8661
5K → 10K80735+772#8661#7889
10K → 15K19984+115#7889#7774
15K → 20K123108+15#7774#7759
20K → Half2819+9#7759#7750
Half → 25K11861+57#7750#7693
25K → 30K129157-28#7693#7721
30K → 20M14330-316#7721#8037
20M → 21M33160-127#8037#8164
21M → 35K5235+17#8164#8147
35K → 23M7194-23#8147#8170
23M → 24M8442+42#8170#8128
24M → 40K5271-19#8128#8147
40K → 25.2M1168-57#8147#8204
25.2M → Finish31175-144#8204#8348
TOTALS17521439+313
📊

Passing Visuals

Category:
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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