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BOSTON MARATHON 2023

Laura Monsivais Lopez

Bib: 17955•F

TX

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 36%
Gender (Female)
#0 / 11423
Top 17%
Division (F18-39)
#0 / 4884
Top 30%
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
7:47/mi
24:11
↑ 97↓ 3451.5%
10K· 6.21 mi
7:43/mi
48:09
↑ 79↓ 1380.4%
15K· 9.32 mi
7:40/mi
1:11:59
↑ 67↓ 78
20K· 12.43 mi
7:43/mi
1:35:59
↑ 106↓ 860.1%
Half· 13.11 mi
7:37/mi
1:41:11
↑ 19↓ 370.5%
25K· 15.53 mi
7:43/mi
1:59:54
↑ 66↓ 880.2%
30K· 18.64 mi
7:43/mi
2:23:53
↑ 181↓ 1480.2%
20M
7:44/mi
2:34:24
↑ 64↓ 500.2%
21M
7:57/mi
2:42:21
↑ 106↓ 241.6%
35K· 21.75 mi
7:33/mi
2:48:00
↑ 17↓ 861.7%
23M
7:42/mi
2:57:39
↑ 23↓ 630.6%
24M
7:20/mi
3:04:59
↓ 821.3%
40K· 24.85 mi
7:31/mi
3:11:25
↓ 200.3%
25.2M
8:10/mi
3:14:14
↑ 13↓ 160.2%
Finish· 26.22 mi
7:20/mi
3:21:42
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:41:11
Pace7:43 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:40:31
Pace7:40 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:5724:117:4724:11
7:47
-
10K
6.21 mi11:38:5548:097:4523:58
7:43
-0:04
15K
9.32 mi12:02:451:11:597:4323:50
7:40
-0:03
20K
12.43 mi12:26:451:35:597:4324:00
7:43
+0:03
Half
13.11 mi12:31:571:41:117:435:12
7:37
-0:06
25K
15.53 mi12:50:401:59:547:4318:43
7:43
+0:06
30K
18.64 mi13:14:392:23:537:4323:59
7:43
0:00
20M
20.00 mi13:25:102:34:247:4310:31
7:44
+0:01
21M
21.00 mi13:33:072:42:217:447:57
7:57
+0:13
35K
21.75 mi13:38:462:48:007:435:39
7:33
-0:24
23M
23.00 mi13:48:252:57:397:439:39
7:42
+0:09
24M
24.00 mi13:55:453:04:597:427:20
7:20
-0:22
40K
24.85 mi14:02:113:11:257:426:26
7:31
+0:11
25.2M
25.20 mi14:05:003:14:147:422:49
8:10
+0:39
Finish
26.22 mi14:12:283:21:427:427:28
7:20
-0:50

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

7:20 /mi

Average Pace

7:42 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:18:53

99% of race

Time at Steady Pace

2:49

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:42 /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 mi11:14:5724:117:4724:11
7:47
#12213
10K
6.21 mi11:38:5548:097:4523:58
7:43
#12257
15K
9.32 mi12:02:451:11:597:4323:50
7:40
#11988
20K
12.43 mi12:26:451:35:597:4324:00
7:43
#11724
Half
13.11 mi12:31:571:41:117:435:12
7:37
#11699
25K
15.53 mi12:50:401:59:547:4318:43
7:43
#11450
30K
18.64 mi13:14:392:23:537:4323:59
7:43
#10910
20M
20.00 mi13:25:102:34:247:4310:31
7:44
#10715
21M
21.00 mi13:33:072:42:217:447:57
7:57
#10471
35K
21.75 mi13:38:462:48:007:435:39
7:33
#10385
23M
23.00 mi13:48:252:57:397:439:39
7:42
#10213
24M
24.00 mi13:55:453:04:597:427:20
7:20
#10009
40K
24.85 mi14:02:113:11:257:426:26
7:31
#9843
25.2M
25.20 mi14:05:003:14:147:422:49
8:10
#9787
Finish
26.22 mi14:12:283:21:427:427:28
7:20
#9648
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi122132981298111598(Top 44%)2677(Top 23%)2677(Top 55%)
10K6.21 mi3.10 mi12257-443005-243005-2412380(Top 47%)3075(Top 27%)3075(Top 63%)
15K9.32 mi3.11 mi11988+2692885+1202885+12011598(Top 44%)2677(Top 23%)2677(Top 55%)
20K12.43 mi3.11 mi11724+2642754+1312754+13111111(Top 42%)2460(Top 22%)2460(Top 50%)
Half13.11 mi0.68 mi11699+252737+172737+1711239(Top 42%)2470(Top 22%)2470(Top 51%)
25K15.53 mi2.42 mi11450+2492618+1192618+11910456(Top 39%)2203(Top 19%)2203(Top 45%)
30K18.64 mi3.11 mi10910+5402351+2672351+2678800(Top 33%)1633(Top 14%)1633(Top 33%)
20M20.00 mi1.36 mi10715+1952289+622289+628464(Top 32%)1588(Top 14%)1588(Top 33%)
21M21.00 mi1.00 mi10471+2442190+992190+997076(Top 27%)1171(Top 10%)1171(Top 24%)
35K21.75 mi0.75 mi10385+862160+302160+308967(Top 34%)1904(Top 17%)1904(Top 39%)
23M23.00 mi1.25 mi10213+1722101+592101+597799(Top 29%)1497(Top 13%)1497(Top 31%)
24M24.00 mi1.00 mi10009+2042040+612040+616664(Top 25%)1146(Top 10%)1146(Top 23%)
40K24.85 mi0.85 mi9843+1661987+531987+536896(Top 26%)1327(Top 12%)1327(Top 27%)
25.2M25.20 mi0.35 mi9787+561975+121975+127585(Top 28%)1655(Top 14%)1655(Top 34%)
Finish26.22 mi1.02 mi9648+1391938+371938+377339(Top 28%)1563(Top 14%)1563(Top 32%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21story building
+97ft-345ft

Overall

11598

Females

2677

F18-39

2677

5K→10K

3.1 - 6.2 mi

Top 47%
×5story building
+79ft-138ft

Overall

12380

Females

3075

F18-39

3075

10K→15K

6.2 - 9.3 mi

Top 44%
×3story building
+67ft-78ft

Overall

11598

Females

2677

F18-39

2677

15K→20K

9.3 - 12.4 mi

Top 42%
×5story building
+106ft-86ft

Overall

11111

Females

2460

F18-39

2460

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

11239

Females

2470

F18-39

2470

Half→25K

13.1 - 15.5 mi

Top 39%
×4story building
+66ft-88ft

Overall

10456

Females

2203

F18-39

2203

25K→30K

15.5 - 18.6 mi

Top 33%
×9story building
+181ft-148ft

Overall

8800

Females

1633

F18-39

1633

30K→20M

18.6 - 20.0 mi

Top 32%
×5story building
+64ft-50ft

Overall

8464

Females

1588

F18-39

1588

20M→21M

20.0 - 21.0 mi

Top 27%
×8story building
+106ft-24ft

Overall

7076

Females

1171

F18-39

1171

21M→35K

21.0 - 21.8 mi

Top 34%
×7story building
+17ft-86ft

Overall

8967

Females

1904

F18-39

1904

35K→23M

21.8 - 23.0 mi

Top 29%
×5story building
+23ft-63ft

Overall

7799

Females

1497

F18-39

1497

23M→24M

23.0 - 24.0 mi

Top 25%
×6story building
+12ft-82ft

Overall

6664

Females

1146

F18-39

1146

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

6896

Females

1327

F18-39

1327

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7585

Females

1655

F18-39

1655

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2story building
+22ft-21ft

Overall

7339

Females

1563

F18-39

1563

Passing Analysis

Category:
Athletes Passed
3147*
Passed By
582
Net Change
+2565
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12213
5K → 10K294338-44#12213#12257
10K → 15K35384+269#12257#11988
15K → 20K31551+264#11988#11724
20K → Half4015+25#11724#11699
Half → 25K27021+249#11699#11450
25K → 30K55111+540#11450#10910
30K → 20M200*5+195#10910#10715
20M → 21M2462+244#10715#10471
21M → 35K959+86#10471#10385
35K → 23M1819+172#10385#10213
23M → 24M2128+204#10213#10009
24M → 40K173*7+166#10009#9843
40K → 25.2M648+56#9843#9787
25.2M → Finish153*14+139#9787#9648
TOTALS3147*582+2565

* 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