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BOSTON MARATHON 2025

Kristopher Tong

Bib: 2022•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 7%
Gender (Male)
#0 / 16105
Top 12%
Masters (Masters Men)
#0 / 10463
Top 3%
Division (M40-44)
#0 / 2247
Top 10%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:19
Rank: #1951
Start → 5K
19:19 | 6:13/mi
10K· 6.21 mi
38:18
Rank: #1691 (+260)
5K → 10K
18:59 | 6:07/mi
15K· 9.32 mi
57:28
Rank: #1680 (+11)
10K → 15K
19:10 | 6:10/mi
20K· 12.43 mi
1:16:55
Rank: #1716 (-36)
15K → 20K
19:27 | 6:16/mi
Half· 13.11 mi
1:21:08
Rank: #1715 (+1)
20K → Half
4:13 | 6:11/mi
25K· 15.53 mi
1:36:26
Rank: #1715
Half → 25K
15:18 | 6:19/mi
30K· 18.64 mi
1:56:23
Rank: #1673 (+42)
25K → 30K
19:57 | 6:25/mi
20M
2:05:16
Rank: #1661 (+12)
30K → 20M
8:53 | 6:32/mi
21M
2:12:12
Rank: #1652 (+9)
20M → 21M
6:56 | 6:56/mi
35K· 21.75 mi
2:16:59
Rank: #1653 (-1)
21M → 35K
4:47 | 6:24/mi
23M
2:25:15
Rank: #1609 (+44)
35K → 23M
8:16 | 6:36/mi
24M
2:31:54
Rank: #1640 (-31)
23M → 24M
6:39 | 6:39/mi
40K· 24.85 mi
2:37:56
Rank: #1698 (-58)
24M → 40K
6:02 | 7:03/mi
25.2M
2:41:01
Rank: #1806 (-108)
40K → 25.2M
3:05 | 8:56/mi
Finish· 26.22 mi
2:48:37
Rank: #1985 (-179)
25.2M → Finish
7:36 | 7:27/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:21:08
Pace6:11 /mi
2nd Half
Distance13.11 mi
Time1:27:29
Pace6:40 /mi
📊Positive Split: 7.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:0919:196:1319:19
6:13
-
10K
6.21 mi10:39:0838:186:1018:59
6:07
-0:06
15K
9.32 mi10:58:1857:286:1019:10
6:10
+0:03
20K
12.43 mi11:17:451:16:556:1119:27
6:16
+0:06
Half
13.11 mi11:21:581:21:086:114:13
6:11
-0:05
25K
15.53 mi11:37:161:36:266:1215:18
6:19
+0:08
30K
18.64 mi11:57:131:56:236:1519:57
6:25
+0:06
20M
20.00 mi12:06:062:05:166:168:53
6:32
+0:07
21M
21.00 mi12:13:022:12:126:186:56
6:56
+0:24
35K
21.75 mi12:17:492:16:596:184:47
6:24
-0:32
23M
23.00 mi12:26:052:25:156:198:16
6:36
+0:12
24M
24.00 mi12:32:442:31:546:206:39
6:39
+0:03
40K
24.85 mi12:38:462:37:566:216:02
7:03
+0:24
25.2M
25.20 mi12:41:512:41:016:233:05
8:56
+1:53
Finish
26.22 mi12:49:272:48:376:267:36
7:27
-1:29

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

6:07 /mi

Average Pace

6:26 /mi

Slowest Pace

8:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:24:58

86% of race

Time at Slower Pace

23:39

14% of race

Average Pace: 6:26 /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 mi10:20:0919:196:1319:19
6:13
#1951
10K
6.21 mi10:39:0838:186:1018:59
6:07
#1691
15K
9.32 mi10:58:1857:286:1019:10
6:10
#1680
20K
12.43 mi11:17:451:16:556:1119:27
6:16
#1716
Half
13.11 mi11:21:581:21:086:114:13
6:11
#1715
25K
15.53 mi11:37:161:36:266:1215:18
6:19
#1715
30K
18.64 mi11:57:131:56:236:1519:57
6:25
#1673
20M
20.00 mi12:06:062:05:166:168:53
6:32
#1661
21M
21.00 mi12:13:022:12:126:186:56
6:56
#1652
35K
21.75 mi12:17:492:16:596:184:47
6:24
#1653
23M
23.00 mi12:26:052:25:156:198:16
6:36
#1609
24M
24.00 mi12:32:442:31:546:206:39
6:39
#1640
40K
24.85 mi12:38:462:37:566:216:02
7:03
#1698
25.2M
25.20 mi12:41:512:41:016:233:05
8:56
#1806
Finish
26.22 mi12:49:272:48:376:267:36
7:27
#1985
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1951185418541689(Top 6%)1603(Top 10%)1603(Top 71%)
10K6.21 mi3.10 mi1691+2601609+2451609+2451506(Top 5%)1429(Top 9%)1429(Top 64%)
15K9.32 mi3.11 mi1680+111597+121597+121689(Top 6%)1603(Top 10%)1603(Top 71%)
20K12.43 mi3.11 mi1716-361630-331630-331833(Top 6%)1744(Top 11%)1744(Top 78%)
Half13.11 mi0.68 mi1715+11629+11629+11866(Top 7%)1779(Top 11%)1779(Top 79%)
25K15.53 mi2.42 mi17151628+11628+11902(Top 7%)1808(Top 11%)1808(Top 80%)
30K18.64 mi3.11 mi1673+421589+391589+391632(Top 6%)1547(Top 10%)1547(Top 69%)
20M20.00 mi1.36 mi1661+121576+131576+131757(Top 6%)1663(Top 10%)1663(Top 74%)
21M21.00 mi1.00 mi1652+91566+101566+101984(Top 7%)1867(Top 12%)1867(Top 83%)
35K21.75 mi0.75 mi1653-11567-11567-11971(Top 7%)1845(Top 11%)1845(Top 82%)
23M23.00 mi1.25 mi1609+441523+441523+441824(Top 6%)1705(Top 11%)1705(Top 76%)
24M24.00 mi1.00 mi1640-311553-301553-302692(Top 9%)2466(Top 15%)2466(Top 110%)
40K24.85 mi0.85 mi1698-581607-541607-544175(Top 15%)3612(Top 22%)3612(Top 161%)
25.2M25.20 mi0.35 mi1806-1081710-1031710-10311339(Top 40%)7599(Top 47%)7599(Top 338%)
Finish26.22 mi1.02 mi1985-1791881-1711881-1718837(Top 31%)6337(Top 39%)6337(Top 282%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1689

Males

1603

M40-44

1603

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1506

Males

1429

M40-44

1429

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1689

Males

1603

M40-44

1603

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1833

Males

1744

M40-44

1744

20K→Half

12.4 - 13.1 mi

Top 7%
×2stories
+19ft-37ft

Overall

1866

Males

1779

M40-44

1779

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

1902

Males

1808

M40-44

1808

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1632

Males

1547

M40-44

1547

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1757

Males

1663

M40-44

1663

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

1984

Males

1867

M40-44

1867

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

1971

Males

1845

M40-44

1845

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1824

Males

1705

M40-44

1705

23M→24M

23.0 - 24.0 mi

Top 9%
×6stories
+12ft-82ft

Overall

2692

Males

2466

M40-44

2466

24M→40K

24.0 - 24.9 mi

Top 15%
×1story
+6ft-20ft

Overall

4175

Males

3612

M40-44

3612

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

11339

Males

7599

M40-44

7599

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2stories
+22ft-21ft

Overall

8837

Males

6337

M40-44

6337

Passing Analysis

Category:
Athletes Passed
729
Passed By
763
Net Change
-34
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1951
5K → 10K27212+260#1951#1691
10K → 15K6655+11#1691#1680
15K → 20K4177-36#1680#1716
20K → Half98+1#1716#1715
Half → 25K53530#1715#1715
25K → 30K8745+42#1715#1673
30K → 20M4533+12#1673#1661
20M → 21M4233+9#1661#1652
21M → 35K1617-1#1652#1653
35K → 23M6218+44#1653#1609
23M → 24M2152-31#1609#1640
24M → 40K1068-58#1640#1698
40K → 25.2M1109-108#1698#1806
25.2M → Finish4183-179#1806#1985
TOTALS729763-34
📊

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