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BOSTON MARATHON 2023

Lixin Gao

Bib: 12354•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
10:15/mi
31:50
↑ 97↓ 3451.5%
10K· 6.21 mi
9:00/mi
59:47
↑ 79↓ 1380.4%
15K· 9.32 mi
9:12/mi
1:28:22
↑ 67↓ 78
20K· 12.43 mi
9:07/mi
1:56:41
↑ 106↓ 860.1%
Half· 13.11 mi
8:34/mi
2:02:32
↑ 19↓ 370.5%
25K· 15.53 mi
8:50/mi
2:23:57
↑ 66↓ 880.2%
30K· 18.64 mi
8:58/mi
2:51:50
↑ 181↓ 1480.2%
20M
8:55/mi
3:03:57
↑ 64↓ 500.2%
21M
9:04/mi
3:13:01
↑ 106↓ 241.6%
35K· 21.75 mi
8:05/mi
3:19:04
↑ 17↓ 861.7%
23M
8:35/mi
3:29:49
↑ 23↓ 630.6%
24M
8:02/mi
3:37:51
↓ 821.3%
40K· 24.85 mi
8:12/mi
3:44:52
↓ 200.3%
25.2M
8:42/mi
3:47:52
↑ 13↓ 160.2%
Finish· 26.22 mi
8:08/mi
3:56:09
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time2:02:32
Pace9:21 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:53:37
Pace8:40 /mi
📊Negative Split: 7.3% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:0931:5010:1531:50
10:15
-
10K
6.21 mi12:19:0659:479:3727:57
9:00
-1:15
15K
9.32 mi12:47:411:28:229:2928:35
9:12
+0:12
20K
12.43 mi13:16:001:56:419:2328:19
9:07
-0:05
Half
13.11 mi13:21:512:02:329:215:51
8:34
-0:33
25K
15.53 mi13:43:162:23:579:1621:25
8:50
+0:16
30K
18.64 mi14:11:092:51:509:1327:53
8:58
+0:08
20M
20.00 mi14:23:163:03:579:1212:07
8:55
-0:03
21M
21.00 mi14:32:203:13:019:119:04
9:04
+0:09
35K
21.75 mi14:38:233:19:049:096:03
8:05
-0:59
23M
23.00 mi14:49:083:29:499:0710:45
8:35
+0:30
24M
24.00 mi14:57:103:37:519:058:02
8:02
-0:33
40K
24.85 mi15:04:113:44:529:037:01
8:12
+0:10
25.2M
25.20 mi15:07:113:47:529:033:00
8:42
+0:30
Finish
26.22 mi15:15:283:56:099:018:17
8:08
-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

8:02 /mi

Average Pace

9:01 /mi

Slowest Pace

10:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

29:23

12% of race

Time at Steady Pace

1:58:02

50% of race

Time at Slower Pace

1:28:44

38% of race

Average Pace: 9:00 /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 mi11:51:0931:5010:1531:50
10:15
#24067
10K
6.21 mi12:19:0659:479:3727:57
9:00
#22663
15K
9.32 mi12:47:411:28:229:2928:35
9:12
#22238
20K
12.43 mi13:16:001:56:419:2328:19
9:07
#21767
Half
13.11 mi13:21:512:02:329:215:51
8:34
#21654
25K
15.53 mi13:43:162:23:579:1621:25
8:50
#21173
30K
18.64 mi14:11:092:51:509:1327:53
8:58
#20517
20M
20.00 mi14:23:163:03:579:1212:07
8:55
#20242
21M
21.00 mi14:32:203:13:019:119:04
9:04
#19908
35K
21.75 mi14:38:233:19:049:096:03
8:05
#19692
23M
23.00 mi14:49:083:29:499:0710:45
8:35
#19408
24M
24.00 mi14:57:103:37:519:058:02
8:02
#19115
40K
24.85 mi15:04:113:44:529:037:01
8:12
#18887
25.2M
25.20 mi15:07:113:47:529:033:00
8:42
#18775
Finish
26.22 mi15:15:283:56:099:018:17
8:08
#18587
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi24067141171411721294(Top 80%)12874(Top 85%)12874(Top 905%)
10K6.21 mi3.10 mi22663+140413461+65613461+65620854(Top 78%)12646(Top 83%)12646(Top 889%)
15K9.32 mi3.11 mi22238+42513257+20413257+20421294(Top 80%)12874(Top 85%)12874(Top 905%)
20K12.43 mi3.11 mi21767+47113052+20513052+20520192(Top 76%)12395(Top 82%)12395(Top 872%)
Half13.11 mi0.68 mi21654+11312994+5812994+5818149(Top 68%)11555(Top 76%)11555(Top 813%)
25K15.53 mi2.42 mi21173+48112783+21112783+21118128(Top 68%)11489(Top 76%)11489(Top 808%)
30K18.64 mi3.11 mi20517+65612479+30412479+30417032(Top 64%)10934(Top 72%)10934(Top 769%)
20M20.00 mi1.36 mi20242+27512342+13712342+13716090(Top 60%)10456(Top 69%)10456(Top 735%)
21M21.00 mi1.00 mi19908+33412197+14512197+14513791(Top 52%)9403(Top 62%)9403(Top 661%)
35K21.75 mi0.75 mi19692+21612101+9612101+9612712(Top 48%)8876(Top 58%)8876(Top 624%)
23M23.00 mi1.25 mi19408+28411979+12211979+12213725(Top 52%)9253(Top 61%)9253(Top 651%)
24M24.00 mi1.00 mi19115+29311832+14711832+14711478(Top 43%)8154(Top 54%)8154(Top 573%)
40K24.85 mi0.85 mi18887+22811729+10311729+10311402(Top 43%)8036(Top 53%)8036(Top 565%)
25.2M25.20 mi0.35 mi18775+11211664+6511664+6510754(Top 40%)7711(Top 51%)7711(Top 542%)
Finish26.22 mi1.02 mi18587+18811580+8411580+8412968(Top 49%)8765(Top 58%)8765(Top 616%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21story building
+97ft-345ft

Overall

21294

Males

12874

M55-59

12874

5K→10K

3.1 - 6.2 mi

Top 78%
×5story building
+79ft-138ft

Overall

20854

Males

12646

M55-59

12646

10K→15K

6.2 - 9.3 mi

Top 80%
×3story building
+67ft-78ft

Overall

21294

Males

12874

M55-59

12874

15K→20K

9.3 - 12.4 mi

Top 76%
×5story building
+106ft-86ft

Overall

20192

Males

12395

M55-59

12395

20K→Half

12.4 - 13.1 mi

Top 68%
×2story building
+19ft-37ft

Overall

18149

Males

11555

M55-59

11555

Half→25K

13.1 - 15.5 mi

Top 68%
×4story building
+66ft-88ft

Overall

18128

Males

11489

M55-59

11489

25K→30K

15.5 - 18.6 mi

Top 64%
×9story building
+181ft-148ft

Overall

17032

Males

10934

M55-59

10934

30K→20M

18.6 - 20.0 mi

Top 60%
×5story building
+64ft-50ft

Overall

16090

Males

10456

M55-59

10456

20M→21M

20.0 - 21.0 mi

Top 52%
×8story building
+106ft-24ft

Overall

13791

Males

9403

M55-59

9403

21M→35K

21.0 - 21.8 mi

Top 48%
×7story building
+17ft-86ft

Overall

12712

Males

8876

M55-59

8876

35K→23M

21.8 - 23.0 mi

Top 52%
×5story building
+23ft-63ft

Overall

13725

Males

9253

M55-59

9253

23M→24M

23.0 - 24.0 mi

Top 43%
×6story building
+12ft-82ft

Overall

11478

Males

8154

M55-59

8154

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

11402

Males

8036

M55-59

8036

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

10754

Males

7711

M55-59

7711

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2story building
+22ft-21ft

Overall

12968

Males

8765

M55-59

8765

Passing Analysis

Category:
Athletes Passed
5528
Passed By
48
Net Change
+5480
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24067
5K → 10K14095+1404#24067#22663
10K → 15K44217+425#22663#22238
15K → 20K48110+471#22238#21767
20K → Half1130+113#21767#21654
Half → 25K4832+481#21654#21173
25K → 30K6571+656#21173#20517
30K → 20M2805+275#20517#20242
20M → 21M3340+334#20242#19908
21M → 35K2171+216#19908#19692
35K → 23M2862+284#19692#19408
23M → 24M2930+293#19408#19115
24M → 40K2280+228#19115#18887
40K → 25.2M1120+112#18887#18775
25.2M → Finish1935+188#18775#18587
TOTALS552848+5480
📊

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