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BOSTON MARATHON 2023

Ali Armstrong

Bib: 3316•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 6%
Gender (Male)
#0 / 15176
Top 10%
Division (M18-39)
#0 / 5285
Top 24%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:50
Rank: #1750
Start → 5K
6:23/mi
19:50 split
10K· 6.21 mi
39:07
Rank: #1551 (+199)
5K → 10K
6:12/mi
19:17 split
15K· 9.32 mi
58:31
Rank: #1486 (+65)
10K → 15K
6:15/mi
19:24 split
20K· 12.43 mi
1:18:12
Rank: #1484 (+2)
15K → 20K
6:20/mi
19:41 split
Half· 13.11 mi
1:22:27
Rank: #1478 (+6)
20K → Half
6:14/mi
4:15 split
25K· 15.53 mi
1:37:53
Rank: #1489 (-11)
Half → 25K
6:22/mi
15:26 split
30K· 18.64 mi
1:58:12
Rank: #1503 (-14)
25K → 30K
6:32/mi
20:19 split
20M
2:07:13
Rank: #1523 (-20)
30K → 20M
6:38/mi
9:01 split
21M
2:14:11
Rank: #1529 (-6)
20M → 21M
6:58/mi
6:58 split
35K· 21.75 mi
2:19:04
Rank: #1554 (-25)
21M → 35K
6:32/mi
4:53 split
23M
2:27:25
Rank: #1554
35K → 23M
6:40/mi
8:21 split
24M
2:34:02
Rank: #1579 (-25)
23M → 24M
6:37/mi
6:37 split
40K· 24.85 mi
2:39:52
Rank: #1599 (-20)
24M → 40K
6:49/mi
5:50 split
25.2M
2:42:23
Rank: #1607 (-8)
40K → 25.2M
7:18/mi
2:31 split
Finish· 26.22 mi
2:49:15
Rank: #1652 (-45)
25.2M → Finish
6:44/mi
6:52 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:27
Pace6:17 /mi
2nd Half
Distance13.11 mi
Time1:26:48
Pace6:37 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:5519:506:2319:50
6:23
-
10K
6.21 mi10:40:1239:076:1819:17
6:12
-0:11
15K
9.32 mi10:59:3658:316:1719:24
6:15
+0:03
20K
12.43 mi11:19:171:18:126:1819:41
6:20
+0:05
Half
13.11 mi11:23:321:22:276:174:15
6:14
-0:06
25K
15.53 mi11:38:581:37:536:1815:26
6:22
+0:08
30K
18.64 mi11:59:171:58:126:2020:19
6:32
+0:10
20M
20.00 mi12:08:182:07:136:229:01
6:38
+0:06
21M
21.00 mi12:15:162:14:116:236:58
6:58
+0:20
35K
21.75 mi12:20:092:19:046:244:53
6:32
-0:26
23M
23.00 mi12:28:302:27:256:258:21
6:40
+0:08
24M
24.00 mi12:35:072:34:026:256:37
6:37
-0:03
40K
24.85 mi12:40:572:39:526:265:50
6:49
+0:12
25.2M
25.20 mi12:43:282:42:236:272:31
7:18
+0:29
Finish
26.22 mi12:50:202:49:156:286:52
6:44
-0:34

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

6:12 /mi

Average Pace

6:28 /mi

Slowest Pace

7:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:39:46

94% of race

Time at Steady Pace

9:29

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:27 /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 mi10:20:5519:506:2319:50
6:23
#1750
10K
6.21 mi10:40:1239:076:1819:17
6:12
#1551
15K
9.32 mi10:59:3658:316:1719:24
6:15
#1486
20K
12.43 mi11:19:171:18:126:1819:41
6:20
#1484
Half
13.11 mi11:23:321:22:276:174:15
6:14
#1478
25K
15.53 mi11:38:581:37:536:1815:26
6:22
#1489
30K
18.64 mi11:59:171:58:126:2020:19
6:32
#1503
20M
20.00 mi12:08:182:07:136:229:01
6:38
#1523
21M
21.00 mi12:15:162:14:116:236:58
6:58
#1529
35K
21.75 mi12:20:092:19:046:244:53
6:32
#1554
23M
23.00 mi12:28:302:27:256:258:21
6:40
#1554
24M
24.00 mi12:35:072:34:026:256:37
6:37
#1579
40K
24.85 mi12:40:572:39:526:265:50
6:49
#1599
25.2M
25.20 mi12:43:282:42:236:272:31
7:18
#1607
Finish
26.22 mi12:50:202:49:156:286:52
6:44
#1652
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1750166816681406(Top 5%)1339(Top 9%)1339(Top 25%)
10K6.21 mi3.10 mi1551+1991479+1891479+1891386(Top 5%)1321(Top 9%)1321(Top 25%)
15K9.32 mi3.11 mi1486+651417+621417+621406(Top 5%)1339(Top 9%)1339(Top 25%)
20K12.43 mi3.11 mi1484+2141714171544(Top 6%)1475(Top 10%)1475(Top 28%)
Half13.11 mi0.68 mi1478+61411+61411+61507(Top 6%)1443(Top 10%)1443(Top 27%)
25K15.53 mi2.42 mi1489-111422-111422-111585(Top 6%)1519(Top 10%)1519(Top 29%)
30K18.64 mi3.11 mi1503-141436-141436-141711(Top 6%)1638(Top 11%)1638(Top 31%)
20M20.00 mi1.36 mi1523-201455-191455-191988(Top 7%)1893(Top 12%)1893(Top 36%)
21M21.00 mi1.00 mi1529-61461-61461-61973(Top 7%)1868(Top 12%)1868(Top 35%)
35K21.75 mi0.75 mi1554-251485-241485-242512(Top 9%)2371(Top 16%)2371(Top 45%)
23M23.00 mi1.25 mi15541484+11484+12032(Top 8%)1922(Top 13%)1922(Top 36%)
24M24.00 mi1.00 mi1579-251508-241508-242620(Top 10%)2438(Top 16%)2438(Top 46%)
40K24.85 mi0.85 mi1599-201528-201528-202905(Top 11%)2672(Top 18%)2672(Top 51%)
25.2M25.20 mi0.35 mi1607-81535-71535-72853(Top 11%)2608(Top 17%)2608(Top 49%)
Finish26.22 mi1.02 mi1652-451576-411576-413692(Top 14%)3284(Top 22%)3284(Top 62%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21story building
+97ft-345ft

Overall

1406

Males

1339

M18-39

1339

5K→10K

3.1 - 6.2 mi

Top 5%
×5story building
+79ft-138ft

Overall

1386

Males

1321

M18-39

1321

10K→15K

6.2 - 9.3 mi

Top 5%
×3story building
+67ft-78ft

Overall

1406

Males

1339

M18-39

1339

15K→20K

9.3 - 12.4 mi

Top 6%
×5story building
+106ft-86ft

Overall

1544

Males

1475

M18-39

1475

20K→Half

12.4 - 13.1 mi

Top 6%
×2story building
+19ft-37ft

Overall

1507

Males

1443

M18-39

1443

Half→25K

13.1 - 15.5 mi

Top 6%
×4story building
+66ft-88ft

Overall

1585

Males

1519

M18-39

1519

25K→30K

15.5 - 18.6 mi

Top 6%
×9story building
+181ft-148ft

Overall

1711

Males

1638

M18-39

1638

30K→20M

18.6 - 20.0 mi

Top 7%
×5story building
+64ft-50ft

Overall

1988

Males

1893

M18-39

1893

20M→21M

20.0 - 21.0 mi

Top 7%
×8story building
+106ft-24ft

Overall

1973

Males

1868

M18-39

1868

21M→35K

21.0 - 21.8 mi

Top 9%
×7story building
+17ft-86ft

Overall

2512

Males

2371

M18-39

2371

35K→23M

21.8 - 23.0 mi

Top 8%
×5story building
+23ft-63ft

Overall

2032

Males

1922

M18-39

1922

23M→24M

23.0 - 24.0 mi

Top 10%
×6story building
+12ft-82ft

Overall

2620

Males

2438

M18-39

2438

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

2905

Males

2672

M18-39

2672

40K→25.2M

24.9 - 25.2 mi

Top 11%
×1story
+13ft-16ft

Overall

2853

Males

2608

M18-39

2608

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2story building
+22ft-21ft

Overall

3692

Males

3284

M18-39

3284

Passing Analysis

Category:
Athletes Passed
572
Passed By
474
Net Change
+98
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1750
5K → 10K21819+199#1750#1551
10K → 15K8823+65#1551#1486
15K → 20K4947+2#1486#1484
20K → Half137+6#1484#1478
Half → 25K3445-11#1478#1489
25K → 30K4963-14#1489#1503
30K → 20M1636-20#1503#1523
20M → 21M2329-6#1523#1529
21M → 35K732-25#1529#1554
35K → 23M26260#1554#1554
23M → 24M1944-25#1554#1579
24M → 40K1434-20#1579#1599
40K → 25.2M715-8#1599#1607
25.2M → Finish954-45#1607#1652
TOTALS572474+98
📊

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