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BOSTON MARATHON 2023

Gail Tyson

Bib: 21916•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 44%
Division (F50-54)
#0 / 1207
Top 37%
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
8:17/mi
25:43
↑ 97↓ 3451.5%
10K· 6.21 mi
8:17/mi
51:27
↑ 79↓ 1380.4%
15K· 9.32 mi
8:19/mi
1:17:16
↑ 67↓ 78
20K· 12.43 mi
8:27/mi
1:43:32
↑ 106↓ 860.1%
Half· 13.11 mi
8:20/mi
1:49:13
↑ 19↓ 370.5%
25K· 15.53 mi
8:30/mi
2:09:50
↑ 66↓ 880.2%
30K· 18.64 mi
9:12/mi
2:38:24
↑ 181↓ 1480.2%
20M
9:31/mi
2:51:20
↑ 64↓ 500.2%
21M
10:49/mi
3:02:09
↑ 106↓ 241.6%
35K· 21.75 mi
8:53/mi
3:08:48
↑ 17↓ 861.7%
23M
9:02/mi
3:20:07
↑ 23↓ 630.6%
24M
8:48/mi
3:28:55
↓ 821.3%
40K· 24.85 mi
8:50/mi
3:36:28
↓ 200.3%
25.2M
9:40/mi
3:39:48
↑ 13↓ 160.2%
Finish· 26.22 mi
8:25/mi
3:48:23
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:13
Pace8:20 /mi
2nd Half
Distance13.11 mi
Time1:59:10
Pace9:05 /mi
📊Positive Split: 9.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:0725:438:1725:43
8:17
-
10K
6.21 mi11:44:5151:278:1725:44
8:17
0:00
15K
9.32 mi12:10:401:17:168:1725:49
8:19
+0:02
20K
12.43 mi12:36:561:43:328:2026:16
8:27
+0:08
Half
13.11 mi12:42:371:49:138:205:41
8:20
-0:07
25K
15.53 mi13:03:142:09:508:2120:37
8:30
+0:10
30K
18.64 mi13:31:482:38:248:3028:34
9:12
+0:42
20M
20.00 mi13:44:442:51:208:3412:56
9:31
+0:19
21M
21.00 mi13:55:333:02:098:4010:49
10:49
+1:18
35K
21.75 mi14:02:123:08:488:416:39
8:53
-1:56
23M
23.00 mi14:13:313:20:078:4211:19
9:02
+0:09
24M
24.00 mi14:22:193:28:558:428:48
8:48
-0:14
40K
24.85 mi14:29:523:36:288:437:33
8:50
+0:02
25.2M
25.20 mi14:33:123:39:488:433:20
9:40
+0:50
Finish
26.22 mi14:41:473:48:238:438:35
8:25
-1:15

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

8:17 /mi

Average Pace

8:43 /mi

Slowest Pace

10:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:48

52% of race

Time at Steady Pace

54:56

24% of race

Time at Slower Pace

55:39

24% of race

Average Pace: 8:43 /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 mi11:19:0725:438:1725:43
8:17
#16007
10K
6.21 mi11:44:5151:278:1725:44
8:17
#16370
15K
9.32 mi12:10:401:17:168:1725:49
8:19
#16458
20K
12.43 mi12:36:561:43:328:2026:16
8:27
#16502
Half
13.11 mi12:42:371:49:138:205:41
8:20
#16511
25K
15.53 mi13:03:142:09:508:2120:37
8:30
#16463
30K
18.64 mi13:31:482:38:248:3028:34
9:12
#16756
20M
20.00 mi13:44:442:51:208:3412:56
9:31
#16933
21M
21.00 mi13:55:333:02:098:4010:49
10:49
#17233
35K
21.75 mi14:02:123:08:488:416:39
8:53
#17236
23M
23.00 mi14:13:313:20:078:4211:19
9:02
#17179
24M
24.00 mi14:22:193:28:558:428:48
8:48
#17118
40K
24.85 mi14:29:523:36:288:437:33
8:50
#17051
25.2M
25.20 mi14:33:123:39:488:433:20
9:40
#17041
Finish
26.22 mi14:41:473:48:238:438:35
8:25
#16950
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi160075289528916611(Top 62%)5677(Top 50%)5677(Top 470%)
10K6.21 mi3.10 mi16370-3635508-2195508-21916821(Top 63%)5760(Top 50%)5760(Top 477%)
15K9.32 mi3.11 mi16458-885564-565564-5616611(Top 62%)5677(Top 50%)5677(Top 470%)
20K12.43 mi3.11 mi16502-445614-505614-5016584(Top 62%)5699(Top 50%)5699(Top 472%)
Half13.11 mi0.68 mi16511-95622-85622-816730(Top 63%)5741(Top 50%)5741(Top 476%)
25K15.53 mi2.42 mi16463+485616+65616+616237(Top 61%)5584(Top 49%)5584(Top 463%)
30K18.64 mi3.11 mi16756-2935829-2135829-21318142(Top 68%)6727(Top 59%)6727(Top 557%)
20M20.00 mi1.36 mi16933-1775931-1025931-10218927(Top 71%)7253(Top 63%)7253(Top 601%)
21M21.00 mi1.00 mi17233-3006132-2016132-20120417(Top 77%)8152(Top 71%)8152(Top 675%)
35K21.75 mi0.75 mi17236-36146-146146-1417403(Top 65%)6496(Top 57%)6496(Top 538%)
23M23.00 mi1.25 mi17179+576121+256121+2516267(Top 61%)5894(Top 52%)5894(Top 488%)
24M24.00 mi1.00 mi17118+616109+126109+1216220(Top 61%)5933(Top 52%)5933(Top 492%)
40K24.85 mi0.85 mi17051+676088+216088+2115281(Top 57%)5463(Top 48%)5463(Top 453%)
25.2M25.20 mi0.35 mi17041+106087+16087+116010(Top 60%)5874(Top 51%)5874(Top 487%)
Finish26.22 mi1.02 mi16950+916052+356052+3514920(Top 56%)5221(Top 46%)5221(Top 433%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21story building
+97ft-345ft

Overall

16611

Females

5677

F50-54

5677

5K→10K

3.1 - 6.2 mi

Top 63%
×5story building
+79ft-138ft

Overall

16821

Females

5760

F50-54

5760

10K→15K

6.2 - 9.3 mi

Top 62%
×3story building
+67ft-78ft

Overall

16611

Females

5677

F50-54

5677

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

16584

Females

5699

F50-54

5699

20K→Half

12.4 - 13.1 mi

Top 63%
×2story building
+19ft-37ft

Overall

16730

Females

5741

F50-54

5741

Half→25K

13.1 - 15.5 mi

Top 61%
×4story building
+66ft-88ft

Overall

16237

Females

5584

F50-54

5584

25K→30K

15.5 - 18.6 mi

Top 68%
×9story building
+181ft-148ft

Overall

18142

Females

6727

F50-54

6727

30K→20M

18.6 - 20.0 mi

Top 71%
×5story building
+64ft-50ft

Overall

18927

Females

7253

F50-54

7253

20M→21M

20.0 - 21.0 mi

Top 77%
×8story building
+106ft-24ft

Overall

20417

Females

8152

F50-54

8152

21M→35K

21.0 - 21.8 mi

Top 65%
×7story building
+17ft-86ft

Overall

17403

Females

6496

F50-54

6496

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

16267

Females

5894

F50-54

5894

23M→24M

23.0 - 24.0 mi

Top 61%
×6story building
+12ft-82ft

Overall

16220

Females

5933

F50-54

5933

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

15281

Females

5463

F50-54

5463

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

16010

Females

5874

F50-54

5874

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2story building
+22ft-21ft

Overall

14920

Females

5221

F50-54

5221

Passing Analysis

Category:
Athletes Passed
1298
Passed By
2241
Net Change
-943
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16007
5K → 10K158521-363#16007#16370
10K → 15K160248-88#16370#16458
15K → 20K152196-44#16458#16502
20K → Half2534-9#16502#16511
Half → 25K152104+48#16511#16463
25K → 30K103396-293#16463#16756
30K → 20M37214-177#16756#16933
20M → 21M27327-300#16933#17233
21M → 35K4144-3#17233#17236
35K → 23M11255+57#17236#17179
23M → 24M9332+61#17179#17118
24M → 40K9225+67#17118#17051
40K → 25.2M2818+10#17051#17041
25.2M → Finish11827+91#17041#16950
TOTALS12982241-943
📊

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