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BOSTON MARATHON 2023

Melissa Alex

OH

Bib: 18723 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 35%
Gender (Female)
#0 / 11423
Top 16%
Masters (Masters Women)
#0 / 6539
Top 6%
Division (F45-49)
#0 / 1817
Top 6%
Race Day Weather
49°/39°F
light intensity drizzle

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:50/mi
24:20
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:40/mi
48:10
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:40/mi
1:11:58
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:39/mi
1:35:43
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:33/mi
1:40:52
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:38/mi
1:59:22
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:44/mi
2:23:23
↑ 181↓ 1480.2%
138 ft elev
20M
7:47/mi
2:33:57
↑ 64↓ 500.2%
148 ft elev
21M
7:52/mi
2:41:49
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:33/mi
2:47:28
↑ 17↓ 861.7%
156 ft elev
23M
7:42/mi
2:57:06
↑ 23↓ 630.6%
116 ft elev
24M
7:16/mi
3:04:22
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:16/mi
3:10:35
↓ 200.3%
20 ft elev
25.2M
7:44/mi
3:13:15
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
6:57/mi
3:20:20
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:40:527:42 /mi+1.4%
2nd Half
1:39:287:35 /mi✓ faster
Negative split — 1.4% faster in the second half
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
24:207:503.11 mi24:20
7:50
-
10K
48:107:453.10 mi23:50
7:40
-0:10
15K
1:11:587:433.11 mi23:48
7:40
0:00
20K
1:35:437:423.11 mi23:45
7:39
-0:01
Half(13.11 mi)
1:40:527:420.68 mi5:09
7:33
-0:06
25K
1:59:227:412.42 mi18:30
7:38
+0:05
30K
2:23:237:423.11 mi24:01
7:44
+0:06
20M
2:33:577:421.36 mi10:34
7:47
+0:03
21M
2:41:497:421.00 mi7:52
7:52
+0:05
35K
2:47:287:420.75 mi5:39
7:33
-0:19
23M
2:57:067:421.25 mi9:38
7:42
+0:09
24M
3:04:227:411.00 mi7:16
7:16
-0:26
40K
3:10:357:400.85 mi6:13
7:16
0:00
25.2M
3:13:157:400.35 mi2:40
7:44
+0:28
Finish(26.22 mi)
3:20:207:391.02 mi7:05
6:57
-0:47
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

6:57 /mi

Average Pace

7:39 /mi

Slowest Pace

7:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

49:52

25% of race

Time at Steady Pace

2:30:28

75% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:38 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi12673326032601150826302630
10K3.10 mi12285+3883025+2353025+2351199428652865
15K3.11 mi11972+3132875+1502875+1501150826302630
20K3.11 mi11551+4212655+2202655+2201046621242124
Half(13.11 mi)0.68 mi11487+642615+402615+401064221802180
25K2.42 mi11173+3142452+1632452+163978919081908
30K3.11 mi10703+4702253+1992253+199887116571657
20M1.36 mi10533+1702189+642189+64870916741674
21M1.00 mi10265+2682079+1102079+1106589986986
35K0.75 mi10201+642058+212058+21895818951895
23M1.25 mi10000+2011987+711987+71771214601460
24M1.00 mi9788+2121931+561931+566200992992
40K0.85 mi9568+2201852+791852+795307766766
25.2M0.35 mi9473+951827+251827+255156801801
Finish(26.22 mi)1.02 mi9288+1851771+561771+564964724724

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21story building
+97ft-345ft

Overall

11508

Females

2630

F45-49

2630

5K→10K

3.1 - 6.2 mi

Top 45%
×5story building
+79ft-138ft

Overall

11994

Females

2865

F45-49

2865

10K→15K

6.2 - 9.3 mi

Top 43%
×3story building
+67ft-78ft

Overall

11508

Females

2630

F45-49

2630

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

10466

Females

2124

F45-49

2124

20K→Half

12.4 - 13.1 mi

Top 40%
×2story building
+19ft-37ft

Overall

10642

Females

2180

F45-49

2180

Half→25K

13.1 - 15.5 mi

Top 37%
×4story building
+66ft-88ft

Overall

9789

Females

1908

F45-49

1908

25K→30K

15.5 - 18.6 mi

Top 33%
×9story building
+181ft-148ft

Overall

8871

Females

1657

F45-49

1657

30K→20M

18.6 - 20.0 mi

Top 33%
×5story building
+64ft-50ft

Overall

8709

Females

1674

F45-49

1674

20M→21M

20.0 - 21.0 mi

Top 25%
×8story building
+106ft-24ft

Overall

6589

Females

986

F45-49

986

21M→35K

21.0 - 21.8 mi

Top 34%
×7story building
+17ft-86ft

Overall

8958

Females

1895

F45-49

1895

35K→23M

21.8 - 23.0 mi

Top 29%
×5story building
+23ft-63ft

Overall

7712

Females

1460

F45-49

1460

23M→24M

23.0 - 24.0 mi

Top 23%
×6story building
+12ft-82ft

Overall

6200

Females

992

F45-49

992

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5307

Females

766

F45-49

766

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5156

Females

801

F45-49

801

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2story building
+22ft-21ft

Overall

4964

Females

724

F45-49

724

Passing Analysis

Category:
Passed
3726*
Passed By
341
Net Change
+3385
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12673
5K → 10K555167+388#12673#12285
10K → 15K38370+313#12285#11972
15K → 20K44827+421#11972#11551
20K → Half728+64#11551#11487
Half → 25K32511+314#11487#11173
25K → 30K48515+470#11173#10703
30K → 20M182*12+170#10703#10533
20M → 21M2724+268#10533#10265
21M → 35K7915+64#10265#10201
35K → 23M204*3+201#10201#10000
23M → 24M216*4+212#10000#9788
24M → 40K220*0+220#9788#9568
40K → 25.2M961+95#9568#9473
25.2M → Finish1894+185#9473#9288
TOTALS3726*341+3385

* Includes athletes who did not complete a segment (DNF/DNQ).

Passing Charts

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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