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BOSTON MARATHON 2023

Alison Thumm

Bib: 19964•F

FL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 44%
Masters (Masters Women)
#0 / 6539
Top 32%
Division (F45-49)
#0 / 1817
Top 37%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:46
Rank: #16106
Start → 5K
25:46 | 8:18/mi
10K· 6.21 mi
51:23
Rank: #16293 (-187)
5K → 10K
25:37 | 8:15/mi
15K· 9.32 mi
1:16:48
Rank: #16116 (+177)
10K → 15K
25:25 | 8:11/mi
20K· 12.43 mi
1:42:40
Rank: #15991 (+125)
15K → 20K
25:52 | 8:20/mi
Half· 13.11 mi
1:48:17
Rank: #15988 (+3)
20K → Half
5:37 | 8:14/mi
25K· 15.53 mi
2:08:21
Rank: #15765 (+223)
Half → 25K
20:04 | 8:17/mi
30K· 18.64 mi
2:34:40
Rank: #15450 (+315)
25K → 30K
26:19 | 8:28/mi
20M
2:46:40
Rank: #15459 (-9)
30K → 20M
12:00 | 8:50/mi
21M
2:56:11
Rank: #15449 (+10)
20M → 21M
9:31 | 9:31/mi
35K· 21.75 mi
3:02:32
Rank: #15448 (+1)
21M → 35K
6:21 | 8:29/mi
23M
3:13:27
Rank: #15367 (+81)
35K → 23M
10:55 | 8:43/mi
24M
3:21:57
Rank: #15316 (+51)
23M → 24M
8:30 | 8:30/mi
40K· 24.85 mi
3:29:17
Rank: #15254 (+62)
24M → 40K
7:20 | 8:35/mi
25.2M
3:32:32
Rank: #15243 (+11)
40K → 25.2M
3:15 | 9:25/mi
Finish· 26.22 mi
3:41:20
Rank: #15264 (-21)
25.2M → Finish
8:48 | 8:38/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:17
Pace8:16 /mi
2nd Half
Distance13.11 mi
Time1:53:03
Pace8:37 /mi
📊Positive Split: 4.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:0225:468:1825:46
8:18
-
10K
6.21 mi11:46:3951:238:1625:37
8:15
-0:03
15K
9.32 mi12:12:041:16:488:1425:25
8:11
-0:04
20K
12.43 mi12:37:561:42:408:1625:52
8:20
+0:09
Half
13.11 mi12:43:331:48:178:165:37
8:14
-0:06
25K
15.53 mi13:03:372:08:218:1620:04
8:17
+0:03
30K
18.64 mi13:29:562:34:408:1826:19
8:28
+0:11
20M
20.00 mi13:41:562:46:408:2012:00
8:50
+0:22
21M
21.00 mi13:51:272:56:118:239:31
9:31
+0:41
35K
21.75 mi13:57:483:02:328:246:21
8:29
-1:02
23M
23.00 mi14:08:433:13:278:2510:55
8:43
+0:14
24M
24.00 mi14:17:133:21:578:258:30
8:30
-0:13
40K
24.85 mi14:24:333:29:178:257:20
8:35
+0:05
25.2M
25.20 mi14:27:483:32:328:263:15
9:25
+0:50
Finish
26.22 mi14:36:363:41:208:278:48
8:38
-0:47

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

8:11 /mi

Average Pace

8:27 /mi

Slowest Pace

9:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:28:34

94% of race

Time at Steady Pace

12:46

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:26 /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 mi11:21:0225:468:1825:46
8:18
#16106
10K
6.21 mi11:46:3951:238:1625:37
8:15
#16293
15K
9.32 mi12:12:041:16:488:1425:25
8:11
#16116
20K
12.43 mi12:37:561:42:408:1625:52
8:20
#15991
Half
13.11 mi12:43:331:48:178:165:37
8:14
#15988
25K
15.53 mi13:03:372:08:218:1620:04
8:17
#15765
30K
18.64 mi13:29:562:34:408:1826:19
8:28
#15450
20M
20.00 mi13:41:562:46:408:2012:00
8:50
#15459
21M
21.00 mi13:51:272:56:118:239:31
9:31
#15449
35K
21.75 mi13:57:483:02:328:246:21
8:29
#15448
23M
23.00 mi14:08:433:13:278:2510:55
8:43
#15367
24M
24.00 mi14:17:133:21:578:258:30
8:30
#15316
40K
24.85 mi14:24:333:29:178:257:20
8:35
#15254
25.2M
25.20 mi14:27:483:32:328:263:15
9:25
#15243
Finish
26.22 mi14:36:363:41:208:278:48
8:38
#15264
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi161065350535015722(Top 59%)5121(Top 45%)5121(Top 282%)
10K6.21 mi3.10 mi16293-1875454-1045454-10416566(Top 62%)5619(Top 49%)5619(Top 309%)
15K9.32 mi3.11 mi16116+1775359+955359+9515722(Top 59%)5121(Top 45%)5121(Top 282%)
20K12.43 mi3.11 mi15991+1255303+565303+5615774(Top 59%)5209(Top 46%)5209(Top 287%)
Half13.11 mi0.68 mi15988+35303530316060(Top 60%)5328(Top 47%)5328(Top 293%)
25K15.53 mi2.42 mi15765+2235188+1155188+11514806(Top 56%)4710(Top 41%)4710(Top 259%)
30K18.64 mi3.11 mi15450+3155041+1475041+14714130(Top 53%)4413(Top 39%)4413(Top 243%)
20M20.00 mi1.36 mi15459-95066-255066-2515617(Top 59%)5339(Top 47%)5339(Top 294%)
21M21.00 mi1.00 mi15449+105090-245090-2416048(Top 60%)5655(Top 50%)5655(Top 311%)
35K21.75 mi0.75 mi15448+15100-105100-1015264(Top 57%)5268(Top 46%)5268(Top 290%)
23M23.00 mi1.25 mi15367+815073+275073+2714518(Top 55%)4912(Top 43%)4912(Top 270%)
24M24.00 mi1.00 mi15316+515053+205053+2014495(Top 54%)4952(Top 43%)4952(Top 273%)
40K24.85 mi0.85 mi15254+625024+295024+2913847(Top 52%)4660(Top 41%)4660(Top 256%)
25.2M25.20 mi0.35 mi15243+115030-65030-614868(Top 56%)5226(Top 46%)5226(Top 288%)
Finish26.22 mi1.02 mi15264-215058-285058-2816182(Top 61%)5924(Top 52%)5924(Top 326%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21stories
+97ft-345ft

Overall

15722

Females

5121

F45-49

5121

5K→10K

3.1 - 6.2 mi

Top 62%
×5stories
+79ft-138ft

Overall

16566

Females

5619

F45-49

5619

10K→15K

6.2 - 9.3 mi

Top 59%
×3stories
+67ft-78ft

Overall

15722

Females

5121

F45-49

5121

15K→20K

9.3 - 12.4 mi

Top 59%
×5stories
+106ft-86ft

Overall

15774

Females

5209

F45-49

5209

20K→Half

12.4 - 13.1 mi

Top 60%
×2stories
+19ft-37ft

Overall

16060

Females

5328

F45-49

5328

Half→25K

13.1 - 15.5 mi

Top 56%
×4stories
+66ft-88ft

Overall

14806

Females

4710

F45-49

4710

25K→30K

15.5 - 18.6 mi

Top 53%
×9stories
+181ft-148ft

Overall

14130

Females

4413

F45-49

4413

30K→20M

18.6 - 20.0 mi

Top 59%
×5stories
+64ft-50ft

Overall

15617

Females

5339

F45-49

5339

20M→21M

20.0 - 21.0 mi

Top 60%
×8stories
+106ft-24ft

Overall

16048

Females

5655

F45-49

5655

21M→35K

21.0 - 21.8 mi

Top 57%
×7stories
+17ft-86ft

Overall

15264

Females

5268

F45-49

5268

35K→23M

21.8 - 23.0 mi

Top 55%
×5stories
+23ft-63ft

Overall

14518

Females

4912

F45-49

4912

23M→24M

23.0 - 24.0 mi

Top 54%
×6stories
+12ft-82ft

Overall

14495

Females

4952

F45-49

4952

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

13847

Females

4660

F45-49

4660

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

14868

Females

5226

F45-49

5226

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2stories
+22ft-21ft

Overall

16182

Females

5924

F45-49

5924

Passing Analysis

Category:
Athletes Passed
2028
Passed By
1186
Net Change
+842
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16106
5K → 10K219406-187#16106#16293
10K → 15K295118+177#16293#16116
15K → 20K229104+125#16116#15991
20K → Half3229+3#15991#15988
Half → 25K26239+223#15988#15765
25K → 30K36348+315#15765#15450
30K → 20M8089-9#15450#15459
20M → 21M9484+10#15459#15449
21M → 35K4847+1#15449#15448
35K → 23M12140+81#15448#15367
23M → 24M9241+51#15367#15316
24M → 40K9432+62#15316#15254
40K → 25.2M4130+11#15254#15243
25.2M → Finish5879-21#15243#15264
TOTALS20281186+842
📊

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