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BOSTON MARATHON 2023

Kristopher Tong

Bib: 4067•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 7%
Gender (Male)
#0 / 15176
Top 12%
Masters (Masters Men)
#0 / 9891
Top 4%
Division (M40-44)
#0 / 2241
Top 11%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:33
Rank: #2956
Start → 5K
20:33 | 6:37/mi
10K· 6.21 mi
40:47
Rank: #2876 (+80)
5K → 10K
20:14 | 6:31/mi
15K· 9.32 mi
1:00:54
Rank: #2718 (+158)
10K → 15K
20:07 | 6:28/mi
20K· 12.43 mi
1:21:07
Rank: #2609 (+109)
15K → 20K
20:13 | 6:30/mi
Half· 13.11 mi
1:25:34
Rank: #2623 (-14)
20K → Half
4:27 | 6:31/mi
25K· 15.53 mi
1:41:25
Rank: #2561 (+62)
Half → 25K
15:51 | 6:32/mi
30K· 18.64 mi
2:01:47
Rank: #2387 (+174)
25K → 30K
20:22 | 6:33/mi
20M
2:10:37
Rank: #2299 (+88)
30K → 20M
8:50 | 6:30/mi
21M
2:17:31
Rank: #2249 (+50)
20M → 21M
6:54 | 6:54/mi
35K· 21.75 mi
2:22:13
Rank: #2199 (+50)
21M → 35K
4:42 | 6:17/mi
23M
2:30:26
Rank: #2137 (+62)
35K → 23M
8:13 | 6:34/mi
24M
2:36:52
Rank: #2095 (+42)
23M → 24M
6:26 | 6:26/mi
40K· 24.85 mi
2:42:26
Rank: #2048 (+47)
24M → 40K
5:34 | 6:31/mi
25.2M
2:44:39
Rank: #2002 (+46)
40K → 25.2M
2:13 | 6:26/mi
Finish· 26.22 mi
2:51:13
Rank: #1970 (+32)
25.2M → Finish
6:34 | 6:26/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:25:34
Pace6:32 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:25:39
Pace6:32 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:0320:336:3720:33
6:37
-
10K
6.21 mi10:43:1740:476:3420:14
6:31
-0:06
15K
9.32 mi11:03:241:00:546:3220:07
6:28
-0:03
20K
12.43 mi11:23:371:21:076:3220:13
6:30
+0:02
Half
13.11 mi11:28:041:25:346:324:27
6:31
+0:01
25K
15.53 mi11:43:551:41:256:3215:51
6:32
+0:01
30K
18.64 mi12:04:172:01:476:3220:22
6:33
+0:01
20M
20.00 mi12:13:072:10:376:328:50
6:30
-0:03
21M
21.00 mi12:20:012:17:316:336:54
6:54
+0:24
35K
21.75 mi12:24:432:22:136:324:42
6:17
-0:37
23M
23.00 mi12:32:562:30:266:328:13
6:34
+0:17
24M
24.00 mi12:39:222:36:526:326:26
6:26
-0:08
40K
24.85 mi12:44:562:42:266:325:34
6:31
+0:05
25.2M
25.20 mi12:47:092:44:396:322:13
6:26
-0:05
Finish
26.22 mi12:53:432:51:136:326:34
6:26
0:00

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

6:17 /mi

Average Pace

6:32 /mi

Slowest Pace

6:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:23:46

84% of race

Time at Steady Pace

27:27

16% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:32 /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 mi10:23:0320:336:3720:33
6:37
#2956
10K
6.21 mi10:43:1740:476:3420:14
6:31
#2876
15K
9.32 mi11:03:241:00:546:3220:07
6:28
#2718
20K
12.43 mi11:23:371:21:076:3220:13
6:30
#2609
Half
13.11 mi11:28:041:25:346:324:27
6:31
#2623
25K
15.53 mi11:43:551:41:256:3215:51
6:32
#2561
30K
18.64 mi12:04:172:01:476:3220:22
6:33
#2387
20M
20.00 mi12:13:072:10:376:328:50
6:30
#2299
21M
21.00 mi12:20:012:17:316:336:54
6:54
#2249
35K
21.75 mi12:24:432:22:136:324:42
6:17
#2199
23M
23.00 mi12:32:562:30:266:328:13
6:34
#2137
24M
24.00 mi12:39:222:36:526:326:26
6:26
#2095
40K
24.85 mi12:44:562:42:266:325:34
6:31
#2048
25.2M
25.20 mi12:47:092:44:396:322:13
6:26
#2002
Finish
26.22 mi12:53:432:51:136:326:34
6:26
#1970
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi2956280628062480(Top 9%)2379(Top 16%)2379(Top 106%)
10K6.21 mi3.10 mi2876+802742+642742+642856(Top 11%)2728(Top 18%)2728(Top 122%)
15K9.32 mi3.11 mi2718+1582595+1472595+1472480(Top 9%)2379(Top 16%)2379(Top 106%)
20K12.43 mi3.11 mi2609+1092494+1012494+1012319(Top 9%)2222(Top 15%)2222(Top 99%)
Half13.11 mi0.68 mi2623-142506-122506-122869(Top 11%)2744(Top 18%)2744(Top 122%)
25K15.53 mi2.42 mi2561+622452+542452+542352(Top 9%)2252(Top 15%)2252(Top 100%)
30K18.64 mi3.11 mi2387+1742288+1642288+1641784(Top 7%)1707(Top 11%)1707(Top 76%)
20M20.00 mi1.36 mi2299+882206+822206+821460(Top 5%)1389(Top 9%)1389(Top 62%)
21M21.00 mi1.00 mi2249+502156+502156+501760(Top 7%)1673(Top 11%)1673(Top 75%)
35K21.75 mi0.75 mi2199+502107+492107+491529(Top 6%)1453(Top 10%)1453(Top 65%)
23M23.00 mi1.25 mi2137+622048+592048+591657(Top 6%)1575(Top 10%)1575(Top 70%)
24M24.00 mi1.00 mi2095+422010+382010+381810(Top 7%)1706(Top 11%)1706(Top 76%)
40K24.85 mi0.85 mi2048+471964+461964+461569(Top 6%)1479(Top 10%)1479(Top 66%)
25.2M25.20 mi0.35 mi2002+461918+461918+46433(Top 2%)408(Top 3%)408(Top 18%)
Finish26.22 mi1.02 mi1970+321886+321886+322179(Top 8%)2019(Top 13%)2019(Top 90%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21stories
+97ft-345ft

Overall

2480

Males

2379

M40-44

2379

5K→10K

3.1 - 6.2 mi

Top 11%
×5stories
+79ft-138ft

Overall

2856

Males

2728

M40-44

2728

10K→15K

6.2 - 9.3 mi

Top 9%
×3stories
+67ft-78ft

Overall

2480

Males

2379

M40-44

2379

15K→20K

9.3 - 12.4 mi

Top 9%
×5stories
+106ft-86ft

Overall

2319

Males

2222

M40-44

2222

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

2869

Males

2744

M40-44

2744

Half→25K

13.1 - 15.5 mi

Top 9%
×4stories
+66ft-88ft

Overall

2352

Males

2252

M40-44

2252

25K→30K

15.5 - 18.6 mi

Top 7%
×9stories
+181ft-148ft

Overall

1784

Males

1707

M40-44

1707

30K→20M

18.6 - 20.0 mi

Top 5%
×5stories
+64ft-50ft

Overall

1460

Males

1389

M40-44

1389

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

1760

Males

1673

M40-44

1673

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1529

Males

1453

M40-44

1453

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1657

Males

1575

M40-44

1575

23M→24M

23.0 - 24.0 mi

Top 7%
×6stories
+12ft-82ft

Overall

1810

Males

1706

M40-44

1706

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1569

Males

1479

M40-44

1479

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

433

Males

408

M40-44

408

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2179

Males

2019

M40-44

2019

Passing Analysis

Category:
Athletes Passed
1267
Passed By
281
Net Change
+986
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2956
5K → 10K204124+80#2956#2876
10K → 15K18325+158#2876#2718
15K → 20K13425+109#2718#2609
20K → Half1024-14#2609#2623
Half → 25K8422+62#2623#2561
25K → 30K1839+174#2561#2387
30K → 20M902+88#2387#2299
20M → 21M6010+50#2299#2249
21M → 35K522+50#2249#2199
35K → 23M7412+62#2199#2137
23M → 24M475+42#2137#2095
24M → 40K536+47#2095#2048
40K → 25.2M460+46#2048#2002
25.2M → Finish4715+32#2002#1970
TOTALS1267281+986
📊

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