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BOSTON MARATHON 2023

Lisa Baston

Bib: 18589•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 42%
Masters (Masters Women)
#0 / 6539
Top 30%
Division (F40-44)
#0 / 1878
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
8:06/mi
25:09
↑ 97↓ 3451.5%
10K· 6.21 mi
8:01/mi
50:02
↑ 79↓ 1380.4%
15K· 9.32 mi
8:10/mi
1:15:25
↑ 67↓ 78
20K· 12.43 mi
8:21/mi
1:41:22
↑ 106↓ 860.1%
Half· 13.11 mi
8:17/mi
1:47:01
↑ 19↓ 370.5%
25K· 15.53 mi
8:25/mi
2:07:25
↑ 66↓ 880.2%
30K· 18.64 mi
8:39/mi
2:34:18
↑ 181↓ 1480.2%
20M
8:48/mi
2:46:16
↑ 64↓ 500.2%
21M
9:12/mi
2:55:28
↑ 106↓ 241.6%
35K· 21.75 mi
8:28/mi
3:01:48
↑ 17↓ 861.7%
23M
8:40/mi
3:12:39
↑ 23↓ 630.6%
24M
8:23/mi
3:21:02
↓ 821.3%
40K· 24.85 mi
8:29/mi
3:28:17
↓ 200.3%
25.2M
9:08/mi
3:31:26
↑ 13↓ 160.2%
Finish· 26.22 mi
8:11/mi
3:39:46
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:01
Pace8:10 /mi
2nd Half
Distance13.11 mi
Time1:52:45
Pace8:36 /mi
📊Positive Split: 5.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:1525:098:0625:09
8:06
-
10K
6.21 mi11:41:0850:028:0324:53
8:01
-0:05
15K
9.32 mi12:06:311:15:258:0525:23
8:10
+0:09
20K
12.43 mi12:32:281:41:228:0925:57
8:21
+0:11
Half
13.11 mi12:38:071:47:018:105:39
8:17
-0:04
25K
15.53 mi12:58:312:07:258:1220:24
8:25
+0:08
30K
18.64 mi13:25:242:34:188:1726:53
8:39
+0:14
20M
20.00 mi13:37:222:46:168:1911:58
8:48
+0:09
21M
21.00 mi13:46:342:55:288:219:12
9:12
+0:24
35K
21.75 mi13:52:543:01:488:226:20
8:28
-0:44
23M
23.00 mi14:03:453:12:398:2310:51
8:40
+0:12
24M
24.00 mi14:12:083:21:028:238:23
8:23
-0:17
40K
24.85 mi14:19:233:28:178:237:15
8:29
+0:06
25.2M
25.20 mi14:22:323:31:268:233:09
9:08
+0:39
Finish
26.22 mi14:30:523:39:468:238:20
8:11
-0:57

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

8:01 /mi

Average Pace

8:23 /mi

Slowest Pace

9:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:27:25

94% of race

Time at Steady Pace

12:21

6% 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 mi11:16:1525:098:0625:09
8:06
#14692
10K
6.21 mi11:41:0850:028:0324:53
8:01
#14761
15K
9.32 mi12:06:311:15:258:0525:23
8:10
#15065
20K
12.43 mi12:32:281:41:228:0925:57
8:21
#15301
Half
13.11 mi12:38:071:47:018:105:39
8:17
#15326
25K
15.53 mi12:58:312:07:258:1220:24
8:25
#15369
30K
18.64 mi13:25:242:34:188:1726:53
8:39
#15312
20M
20.00 mi13:37:222:46:168:1911:58
8:48
#15320
21M
21.00 mi13:46:342:55:288:219:12
9:12
#15244
35K
21.75 mi13:52:543:01:488:226:20
8:28
#15212
23M
23.00 mi14:03:453:12:398:2310:51
8:40
#15127
24M
24.00 mi14:12:083:21:028:238:23
8:23
#15058
40K
24.85 mi14:19:233:28:178:237:15
8:29
#14969
25.2M
25.20 mi14:22:323:31:268:233:09
9:08
#14938
Finish
26.22 mi14:30:523:39:468:238:20
8:11
#14880
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi146924448444815658(Top 59%)5084(Top 45%)5084(Top 271%)
10K6.21 mi3.10 mi14761-694503-554503-5514881(Top 56%)4598(Top 40%)4598(Top 245%)
15K9.32 mi3.11 mi15065-3044703-2004703-20015658(Top 59%)5084(Top 45%)5084(Top 271%)
20K12.43 mi3.11 mi15301-2364873-1704873-17015953(Top 60%)5319(Top 47%)5319(Top 283%)
Half13.11 mi0.68 mi15326-254892-194892-1916378(Top 62%)5510(Top 48%)5510(Top 293%)
25K15.53 mi2.42 mi15369-434944-524944-5215677(Top 59%)5251(Top 46%)5251(Top 280%)
30K18.64 mi3.11 mi15312+574951-74951-715239(Top 57%)5077(Top 44%)5077(Top 270%)
20M20.00 mi1.36 mi15320-84975-244975-2415466(Top 58%)5252(Top 46%)5252(Top 280%)
21M21.00 mi1.00 mi15244+764959+164959+1614500(Top 54%)4763(Top 42%)4763(Top 254%)
35K21.75 mi0.75 mi15212+324957+24957+215135(Top 57%)5186(Top 45%)5186(Top 276%)
23M23.00 mi1.25 mi15127+854918+394918+3914196(Top 53%)4726(Top 41%)4726(Top 252%)
24M24.00 mi1.00 mi15058+694886+324886+3213794(Top 52%)4552(Top 40%)4552(Top 242%)
40K24.85 mi0.85 mi14969+894859+274859+2713244(Top 50%)4342(Top 38%)4342(Top 231%)
25.2M25.20 mi0.35 mi14938+314850+94850+913346(Top 50%)4417(Top 39%)4417(Top 235%)
Finish26.22 mi1.02 mi14880+584835+154835+1513321(Top 50%)4380(Top 38%)4380(Top 233%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21story building
+97ft-345ft

Overall

15658

Females

5084

F40-44

5084

5K→10K

3.1 - 6.2 mi

Top 56%
×5story building
+79ft-138ft

Overall

14881

Females

4598

F40-44

4598

10K→15K

6.2 - 9.3 mi

Top 59%
×3story building
+67ft-78ft

Overall

15658

Females

5084

F40-44

5084

15K→20K

9.3 - 12.4 mi

Top 60%
×5story building
+106ft-86ft

Overall

15953

Females

5319

F40-44

5319

20K→Half

12.4 - 13.1 mi

Top 62%
×2story building
+19ft-37ft

Overall

16378

Females

5510

F40-44

5510

Half→25K

13.1 - 15.5 mi

Top 59%
×4story building
+66ft-88ft

Overall

15677

Females

5251

F40-44

5251

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

15239

Females

5077

F40-44

5077

30K→20M

18.6 - 20.0 mi

Top 58%
×5story building
+64ft-50ft

Overall

15466

Females

5252

F40-44

5252

20M→21M

20.0 - 21.0 mi

Top 54%
×8story building
+106ft-24ft

Overall

14500

Females

4763

F40-44

4763

21M→35K

21.0 - 21.8 mi

Top 57%
×7story building
+17ft-86ft

Overall

15135

Females

5186

F40-44

5186

35K→23M

21.8 - 23.0 mi

Top 53%
×5story building
+23ft-63ft

Overall

14196

Females

4726

F40-44

4726

23M→24M

23.0 - 24.0 mi

Top 52%
×6story building
+12ft-82ft

Overall

13794

Females

4552

F40-44

4552

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

13244

Females

4342

F40-44

4342

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

13346

Females

4417

F40-44

4417

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2story building
+22ft-21ft

Overall

13321

Females

4380

F40-44

4380

Passing Analysis

Category:
Athletes Passed
1547
Passed By
1735
Net Change
-188
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14692
5K → 10K262331-69#14692#14761
10K → 15K94398-304#14761#15065
15K → 20K110346-236#15065#15301
20K → Half2853-25#15301#15326
Half → 25K123166-43#15326#15369
25K → 30K206149+57#15369#15312
30K → 20M8593-8#15312#15320
20M → 21M12347+76#15320#15244
21M → 35K5927+32#15244#15212
35K → 23M11530+85#15212#15127
23M → 24M9728+69#15127#15058
24M → 40K10617+89#15058#14969
40K → 25.2M4514+31#14969#14938
25.2M → Finish9436+58#14938#14880
TOTALS15471735-188
📊

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