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BOSTON MARATHON 2023

Isabelle Thivierge

Bib: 23170•F

QC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F50-54)
#0 / 1207
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:45
Rank: #20129
Start → 5K
27:45 | 8:56/mi
10K· 6.21 mi
55:23
Rank: #20278 (-149)
5K → 10K
27:38 | 8:54/mi
15K· 9.32 mi
1:23:20
Rank: #20300 (-22)
10K → 15K
27:57 | 9:00/mi
20K· 12.43 mi
1:51:43
Rank: #20317 (-17)
15K → 20K
28:23 | 9:08/mi
Half· 13.11 mi
1:57:49
Rank: #20308 (+9)
20K → Half
6:06 | 8:56/mi
25K· 15.53 mi
2:19:54
Rank: #20141 (+167)
Half → 25K
22:05 | 9:06/mi
30K· 18.64 mi
2:49:13
Rank: #19954 (+187)
25K → 30K
29:19 | 9:26/mi
20M
3:02:12
Rank: #19858 (+96)
30K → 20M
12:59 | 9:33/mi
21M
3:12:12
Rank: #19734 (+124)
20M → 21M
10:00 | 10:00/mi
35K· 21.75 mi
3:18:55
Rank: #19659 (+75)
21M → 35K
6:43 | 8:59/mi
23M
3:30:33
Rank: #19540 (+119)
35K → 23M
11:38 | 9:17/mi
24M
3:39:16
Rank: #19394 (+146)
23M → 24M
8:43 | 8:43/mi
40K· 24.85 mi
3:46:53
Rank: #19264 (+130)
24M → 40K
7:37 | 8:54/mi
25.2M
3:50:09
Rank: #19202 (+62)
40K → 25.2M
3:16 | 9:28/mi
Finish· 26.22 mi
3:58:40
Rank: #19072 (+130)
25.2M → Finish
8:31 | 8:21/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:49
Pace8:59 /mi
2nd Half
Distance13.11 mi
Time2:00:51
Pace9:13 /mi
📊Positive Split: 2.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:3327:458:5627:45
8:56
-
10K
6.21 mi11:52:1155:238:5527:38
8:54
-0:02
15K
9.32 mi12:20:081:23:208:5627:57
9:00
+0:06
20K
12.43 mi12:48:311:51:438:5928:23
9:08
+0:08
Half
13.11 mi12:54:371:57:498:596:06
8:56
-0:12
25K
15.53 mi13:16:422:19:549:0022:05
9:06
+0:10
30K
18.64 mi13:46:012:49:139:0529:19
9:26
+0:20
20M
20.00 mi13:59:003:02:129:0712:59
9:33
+0:07
21M
21.00 mi14:09:003:12:129:0910:00
10:00
+0:27
35K
21.75 mi14:15:433:18:559:096:43
8:59
-1:01
23M
23.00 mi14:27:213:30:339:0911:38
9:17
+0:18
24M
24.00 mi14:36:043:39:169:088:43
8:43
-0:34
40K
24.85 mi14:43:413:46:539:087:37
8:54
+0:11
25.2M
25.20 mi14:46:573:50:099:083:16
9:28
+0:34
Finish
26.22 mi14:55:283:58:409:078:31
8:21
-1:07

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

8:21 /mi

Average Pace

9:07 /mi

Slowest Pace

10:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:51:28

72% of race

Time at Steady Pace

57:12

24% of race

Time at Slower Pace

10:00

4% of race

Average Pace: 9:06 /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 mi11:24:3327:458:5627:45
8:56
#20129
10K
6.21 mi11:52:1155:238:5527:38
8:54
#20278
15K
9.32 mi12:20:081:23:208:5627:57
9:00
#20300
20K
12.43 mi12:48:311:51:438:5928:23
9:08
#20317
Half
13.11 mi12:54:371:57:498:596:06
8:56
#20308
25K
15.53 mi13:16:422:19:549:0022:05
9:06
#20141
30K
18.64 mi13:46:012:49:139:0529:19
9:26
#19954
20M
20.00 mi13:59:003:02:129:0712:59
9:33
#19858
21M
21.00 mi14:09:003:12:129:0910:00
10:00
#19734
35K
21.75 mi14:15:433:18:559:096:43
8:59
#19659
23M
23.00 mi14:27:213:30:339:0911:38
9:17
#19540
24M
24.00 mi14:36:043:39:169:088:43
8:43
#19394
40K
24.85 mi14:43:413:46:539:087:37
8:54
#19264
25.2M
25.20 mi14:46:573:50:099:083:16
9:28
#19202
Finish
26.22 mi14:55:283:58:409:078:31
8:21
#19072
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi201297894789420494(Top 77%)7951(Top 70%)7951(Top 659%)
10K6.21 mi3.10 mi20278-1497907-137907-1320405(Top 77%)7926(Top 69%)7926(Top 657%)
15K9.32 mi3.11 mi20300-227904+37904+320494(Top 77%)7951(Top 70%)7951(Top 659%)
20K12.43 mi3.11 mi20317-177898+67898+620304(Top 76%)7841(Top 69%)7841(Top 650%)
Half13.11 mi0.68 mi20308+97891+77891+720201(Top 76%)7772(Top 68%)7772(Top 644%)
25K15.53 mi2.42 mi20141+1677783+1087783+10819460(Top 73%)7404(Top 65%)7404(Top 613%)
30K18.64 mi3.11 mi19954+1877707+767707+7619206(Top 72%)7307(Top 64%)7307(Top 605%)
20M20.00 mi1.36 mi19858+967656+517656+5119072(Top 72%)7334(Top 64%)7334(Top 608%)
21M21.00 mi1.00 mi19734+1247588+687588+6818049(Top 68%)6797(Top 60%)6797(Top 563%)
35K21.75 mi0.75 mi19659+757551+377551+3717853(Top 67%)6755(Top 59%)6755(Top 560%)
23M23.00 mi1.25 mi19540+1197488+637488+6317508(Top 66%)6580(Top 58%)6580(Top 545%)
24M24.00 mi1.00 mi19394+1467412+767412+7615800(Top 59%)5713(Top 50%)5713(Top 473%)
40K24.85 mi0.85 mi19264+1307349+637349+6315701(Top 59%)5693(Top 50%)5693(Top 472%)
25.2M25.20 mi0.35 mi19202+627317+327317+3215174(Top 57%)5428(Top 48%)5428(Top 450%)
Finish26.22 mi1.02 mi19072+1307249+687249+6814502(Top 54%)5010(Top 44%)5010(Top 415%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21stories
+97ft-345ft

Overall

20494

Females

7951

F50-54

7951

5K→10K

3.1 - 6.2 mi

Top 77%
×5stories
+79ft-138ft

Overall

20405

Females

7926

F50-54

7926

10K→15K

6.2 - 9.3 mi

Top 77%
×3stories
+67ft-78ft

Overall

20494

Females

7951

F50-54

7951

15K→20K

9.3 - 12.4 mi

Top 76%
×5stories
+106ft-86ft

Overall

20304

Females

7841

F50-54

7841

20K→Half

12.4 - 13.1 mi

Top 76%
×2stories
+19ft-37ft

Overall

20201

Females

7772

F50-54

7772

Half→25K

13.1 - 15.5 mi

Top 73%
×4stories
+66ft-88ft

Overall

19460

Females

7404

F50-54

7404

25K→30K

15.5 - 18.6 mi

Top 72%
×9stories
+181ft-148ft

Overall

19206

Females

7307

F50-54

7307

30K→20M

18.6 - 20.0 mi

Top 72%
×5stories
+64ft-50ft

Overall

19072

Females

7334

F50-54

7334

20M→21M

20.0 - 21.0 mi

Top 68%
×8stories
+106ft-24ft

Overall

18049

Females

6797

F50-54

6797

21M→35K

21.0 - 21.8 mi

Top 67%
×7stories
+17ft-86ft

Overall

17853

Females

6755

F50-54

6755

35K→23M

21.8 - 23.0 mi

Top 66%
×5stories
+23ft-63ft

Overall

17508

Females

6580

F50-54

6580

23M→24M

23.0 - 24.0 mi

Top 59%
×6stories
+12ft-82ft

Overall

15800

Females

5713

F50-54

5713

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

15701

Females

5693

F50-54

5693

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

15174

Females

5428

F50-54

5428

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2stories
+22ft-21ft

Overall

14502

Females

5010

F50-54

5010

Passing Analysis

Category:
Athletes Passed
2064
Passed By
1007
Net Change
+1057
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20129
5K → 10K225374-149#20129#20278
10K → 15K176198-22#20278#20300
15K → 20K168185-17#20300#20317
20K → Half3425+9#20317#20308
Half → 25K21649+167#20308#20141
25K → 30K24962+187#20141#19954
30K → 20M13438+96#19954#19858
20M → 21M15026+124#19858#19734
21M → 35K8712+75#19734#19659
35K → 23M13415+119#19659#19540
23M → 24M1548+146#19540#19394
24M → 40K1333+130#19394#19264
40K → 25.2M631+62#19264#19202
25.2M → Finish14111+130#19202#19072
TOTALS20641007+1057
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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