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BOSTON MARATHON 2023

Mary Liesse

Bib: 11736•F

IL

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 39%
Gender (Female)
#0 / 11423
Top 20%
Division (F18-39)
#0 / 4884
Top 35%
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
7:27/mi
23:10
↑ 97↓ 3451.5%
10K· 6.21 mi
7:23/mi
46:07
↑ 79↓ 1380.4%
15K· 9.32 mi
7:27/mi
1:09:15
↑ 67↓ 78
20K· 12.43 mi
7:29/mi
1:32:29
↑ 106↓ 860.1%
Half· 13.11 mi
7:30/mi
1:37:36
↑ 19↓ 370.5%
25K· 15.53 mi
7:36/mi
1:56:01
↑ 66↓ 880.2%
30K· 18.64 mi
7:54/mi
2:20:33
↑ 181↓ 1480.2%
20M
8:01/mi
2:31:27
↑ 64↓ 500.2%
21M
8:37/mi
2:40:04
↑ 106↓ 241.6%
35K· 21.75 mi
7:52/mi
2:45:57
↑ 17↓ 861.7%
23M
8:19/mi
2:56:22
↑ 23↓ 630.6%
24M
8:18/mi
3:04:40
↓ 821.3%
40K· 24.85 mi
8:36/mi
3:12:01
↓ 200.3%
25.2M
9:34/mi
3:15:19
↑ 13↓ 160.2%
Finish· 26.22 mi
8:48/mi
3:24:17
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:36
Pace7:27 /mi
2nd Half
Distance13.11 mi
Time1:46:41
Pace8:08 /mi
📊Positive Split: 9.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:4223:107:2723:10
7:27
-
10K
6.21 mi11:13:3946:077:2522:57
7:23
-0:04
15K
9.32 mi11:36:471:09:157:2623:08
7:27
+0:04
20K
12.43 mi12:00:011:32:297:2723:14
7:29
+0:02
Half
13.11 mi12:05:081:37:367:275:07
7:30
+0:01
25K
15.53 mi12:23:331:56:017:2818:25
7:36
+0:06
30K
18.64 mi12:48:052:20:337:3224:32
7:54
+0:18
20M
20.00 mi12:58:592:31:277:3410:54
8:01
+0:07
21M
21.00 mi13:07:362:40:047:378:37
8:37
+0:36
35K
21.75 mi13:13:292:45:577:385:53
7:52
-0:45
23M
23.00 mi13:23:542:56:227:4010:25
8:19
+0:27
24M
24.00 mi13:32:123:04:407:428:18
8:18
-0:01
40K
24.85 mi13:39:333:12:017:447:21
8:36
+0:18
25.2M
25.20 mi13:42:513:15:197:453:18
9:34
+0:58
Finish
26.22 mi13:51:493:24:177:488:58
8:48
-0:46

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

7:23 /mi

Average Pace

7:48 /mi

Slowest Pace

9:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:37:36

48% of race

Time at Steady Pace

59:44

29% of race

Time at Slower Pace

46:57

23% of race

Average Pace: 7:47 /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 mi10:50:4223:107:2723:10
7:27
#9289
10K
6.21 mi11:13:3946:077:2522:57
7:23
#9360
15K
9.32 mi11:36:471:09:157:2623:08
7:27
#9435
20K
12.43 mi12:00:011:32:297:2723:14
7:29
#9351
Half
13.11 mi12:05:081:37:367:275:07
7:30
#9393
25K
15.53 mi12:23:331:56:017:2818:25
7:36
#9385
30K
18.64 mi12:48:052:20:337:3224:32
7:54
#9493
20M
20.00 mi12:58:592:31:277:3410:54
8:01
#9546
21M
21.00 mi13:07:362:40:047:378:37
8:37
#9617
35K
21.75 mi13:13:292:45:577:385:53
7:52
#9644
23M
23.00 mi13:23:542:56:227:4010:25
8:19
#9761
24M
24.00 mi13:32:123:04:407:428:18
8:18
#9890
40K
24.85 mi13:39:333:12:017:447:21
8:36
#10043
25.2M
25.20 mi13:42:513:15:197:453:18
9:34
#10133
Finish
26.22 mi13:51:493:24:177:488:58
8:48
#10440
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9289152915299749(Top 37%)1730(Top 15%)1730(Top 35%)
10K6.21 mi3.10 mi9360-711555-261555-269515(Top 36%)1632(Top 14%)1632(Top 33%)
15K9.32 mi3.11 mi9435-751595-401595-409749(Top 37%)1730(Top 15%)1730(Top 35%)
20K12.43 mi3.11 mi9351+841577+181577+189162(Top 34%)1554(Top 14%)1554(Top 32%)
Half13.11 mi0.68 mi9393-421594-171594-1710305(Top 39%)2038(Top 18%)2038(Top 42%)
25K15.53 mi2.42 mi9385+81603-91603-99534(Top 36%)1801(Top 16%)1801(Top 37%)
30K18.64 mi3.11 mi9493-1081685-821685-8210125(Top 38%)2224(Top 19%)2224(Top 46%)
20M20.00 mi1.36 mi9546-531726-411726-4110441(Top 39%)2449(Top 21%)2449(Top 50%)
21M21.00 mi1.00 mi9617-711770-441770-4411162(Top 42%)2944(Top 26%)2944(Top 60%)
35K21.75 mi0.75 mi9644-271797-271797-2711152(Top 42%)2939(Top 26%)2939(Top 60%)
23M23.00 mi1.25 mi9761-1171894-971894-9712042(Top 45%)3531(Top 31%)3531(Top 72%)
24M24.00 mi1.00 mi9890-1291981-871981-8713255(Top 50%)4251(Top 37%)4251(Top 87%)
40K24.85 mi0.85 mi10043-1532080-992080-9913933(Top 52%)4696(Top 41%)4696(Top 96%)
25.2M25.20 mi0.35 mi10133-902129-492129-4915502(Top 58%)5563(Top 49%)5563(Top 114%)
Finish26.22 mi1.02 mi10440-3072313-1842313-18417032(Top 64%)6384(Top 56%)6384(Top 131%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21story building
+97ft-345ft

Overall

9749

Females

1730

F18-39

1730

5K→10K

3.1 - 6.2 mi

Top 36%
×5story building
+79ft-138ft

Overall

9515

Females

1632

F18-39

1632

10K→15K

6.2 - 9.3 mi

Top 37%
×3story building
+67ft-78ft

Overall

9749

Females

1730

F18-39

1730

15K→20K

9.3 - 12.4 mi

Top 34%
×5story building
+106ft-86ft

Overall

9162

Females

1554

F18-39

1554

20K→Half

12.4 - 13.1 mi

Top 39%
×2story building
+19ft-37ft

Overall

10305

Females

2038

F18-39

2038

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

9534

Females

1801

F18-39

1801

25K→30K

15.5 - 18.6 mi

Top 38%
×9story building
+181ft-148ft

Overall

10125

Females

2224

F18-39

2224

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

10441

Females

2449

F18-39

2449

20M→21M

20.0 - 21.0 mi

Top 42%
×8story building
+106ft-24ft

Overall

11162

Females

2944

F18-39

2944

21M→35K

21.0 - 21.8 mi

Top 42%
×7story building
+17ft-86ft

Overall

11152

Females

2939

F18-39

2939

35K→23M

21.8 - 23.0 mi

Top 45%
×5story building
+23ft-63ft

Overall

12042

Females

3531

F18-39

3531

23M→24M

23.0 - 24.0 mi

Top 50%
×6story building
+12ft-82ft

Overall

13255

Females

4251

F18-39

4251

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

13933

Females

4696

F18-39

4696

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

15502

Females

5563

F18-39

5563

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2story building
+22ft-21ft

Overall

17032

Females

6384

F18-39

6384

Passing Analysis

Category:
Athletes Passed
1124*
Passed By
2273
Net Change
-1151
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9289
5K → 10K233304-71#9289#9360
10K → 15K128203-75#9360#9435
15K → 20K18197+84#9435#9351
20K → Half1254-42#9351#9393
Half → 25K122114+8#9393#9385
25K → 30K145*253-108#9385#9493
30K → 20M64117-53#9493#9546
20M → 21M54125-71#9546#9617
21M → 35K2956-27#9617#9644
35K → 23M66183-117#9644#9761
23M → 24M34162-129#9761#9890
24M → 40K25177-153#9890#10043
40K → 25.2M15*105-90#10043#10133
25.2M → Finish16323-307#10133#10440
TOTALS1124*2273-1151

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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